WO2019049225A1 - 発光素子 - Google Patents
発光素子 Download PDFInfo
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- WO2019049225A1 WO2019049225A1 PCT/JP2017/032043 JP2017032043W WO2019049225A1 WO 2019049225 A1 WO2019049225 A1 WO 2019049225A1 JP 2017032043 W JP2017032043 W JP 2017032043W WO 2019049225 A1 WO2019049225 A1 WO 2019049225A1
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- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 241
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- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 26
- 150000003624 transition metals Chemical class 0.000 claims abstract description 26
- 150000003384 small molecules Chemical class 0.000 claims abstract description 17
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 16
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- 125000003118 aryl group Chemical group 0.000 claims description 177
- 125000000217 alkyl group Chemical group 0.000 claims description 143
- 150000004696 coordination complex Chemical group 0.000 claims description 129
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 113
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 108
- 238000000034 method Methods 0.000 claims description 97
- 239000000463 material Substances 0.000 claims description 96
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- 238000004132 cross linking Methods 0.000 claims description 69
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- 125000000000 cycloalkoxy group Chemical group 0.000 claims description 52
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 37
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 37
- 230000005281 excited state Effects 0.000 claims description 36
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- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 125000001827 mesitylenyl group Chemical group [H]C1=C(C(*)=C(C([H])=C1C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- 125000005447 octyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
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- 125000005981 pentynyl group Chemical group 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
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- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical group C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
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- 238000001226 reprecipitation Methods 0.000 description 1
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- 238000012552 review Methods 0.000 description 1
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- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000005266 side chain polymer Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- KBXGMZXLKCUSEB-UHFFFAOYSA-M sodium;[ethyl(oxidosulfinothioyl)amino]ethane Chemical compound [Na+].CCN(CC)S([O-])=S KBXGMZXLKCUSEB-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000956 solid--liquid extraction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- NLDYACGHTUPAQU-UHFFFAOYSA-N tetracyanoethylene Chemical group N#CC(C#N)=C(C#N)C#N NLDYACGHTUPAQU-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 150000003536 tetrazoles Chemical group 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- H10K50/12—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
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- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
- H10K50/171—Electron injection layers
Definitions
- the present invention relates to a light emitting device.
- Patent Document 1 describes a light emitting device having an organic layer containing a polymer compound (P0) represented by the following formula, and a light emitting layer containing a host material and an iridium complex.
- P0 polymer compound
- an object of this invention is to provide the light emitting element which is excellent in an external quantum efficiency.
- the present invention provides the following [1] to [14].
- a light emitting device comprising an anode, a cathode, a first organic layer provided between the anode and the cathode, and a second organic layer provided between the anode and the cathode, A layer comprising a first organic layer, and a phosphorescent transition metal complex and at least one of the group consisting of requirement (I) and requirement (II), and containing a transition metal-free low molecular weight compound
- the second organic layer is a layer containing a crosslinked product of a polymer compound containing a structural unit having a crosslinking group, and the energy level of the lowest triplet excited state of the polymer compound is 2.30 eV or more. Light emitting element.
- n T1 represents an integer of 0 or more and 5 or less. When there are a plurality of n T1 's , they may be the same or different.
- n T2 represents an integer of 1 or more and 10 or less.
- a plurality of Ar T1 may be the same or different.
- L T1 represents an alkylene group, a cycloalkylene group, an arylene group, a divalent heterocyclic group, a group represented by -NR T1 '-, an oxygen atom or a sulfur atom, and these groups have a substituent
- R T1 ′ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- Ar T2 represents an aromatic hydrocarbon group or a heterocyclic group, and these groups may have a substituent.
- X T1 represents a single bond, an oxygen atom, a sulfur atom, a group represented by -N (R XT1 )-, or a group represented by -C (R XT1 ') 2- .
- R XT1 and R XT1 ′ are each independently a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group, a halogen atom or A cyano group is represented, and these groups may have a substituent.
- R XT1 's may be the same or different, and may be combined with each other to form a ring together with the atoms to which they are attached.
- R T1 , R T2 , R T3 , R T4 , R T5 , R T6 , R T7 and R T8 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or an aryl group It represents an oxy group, a monovalent heterocyclic group, a substituted amino group, a halogen atom or a cyano group, and these groups may have a substituent.
- crosslinking groups may have a substituent, and when there are a plurality of such substituents, they may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- the structural unit having a crosslinking group is a structural unit represented by Formula (2) or Formula (2 ′).
- nA represents an integer of 0 to 5, and n represents 1 or 2. When a plurality of nA are present, they may be the same or different.
- Ar 3 represents an aromatic hydrocarbon group or a heterocyclic group, and these groups may have a substituent.
- L A is an alkylene group, a cycloalkylene group, an arylene group, a divalent heterocyclic group, the group represented by -NR'-, an oxygen atom or a sulfur atom, these groups have a substituent It is also good.
- R ′ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent. If L A is plurally present, they may be the same or different.
- X represents a crosslinking group selected from the aforementioned crosslinking group A group. When two or more X exist, they may be same or different.
- mA represents an integer of 0 to 5
- m represents an integer of 1 to 4
- c represents 0 or 1.
- Ar 5 represents an aromatic hydrocarbon group, a heterocyclic group, or a group in which at least one aromatic hydrocarbon ring and at least one heterocyclic ring are directly bonded, and these groups have a substituent
- Ar 4 and Ar 6 each independently represent an arylene group or a divalent heterocyclic group, and these groups may have a substituent.
- Ar 4 , Ar 5 and Ar 6 are each directly bonded to a group other than the group bonded to the nitrogen atom to which the group is bonded, or bonded through an oxygen atom or a sulfur atom And may form a ring.
- K A represents an alkylene group, a cycloalkylene group, an arylene group, a divalent heterocyclic group, a group represented by —NR′—, an oxygen atom or a sulfur atom, and these groups each have a substituent It is also good.
- R ' represents the same meaning as described above. If K A there are a plurality, they may be the same or different.
- X ' represents a bridging group selected from the above bridging group A, a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent .
- a plurality of X 'are present they may be the same or different.
- at least one X ′ is a crosslinking group selected from the aforementioned crosslinking group A group.
- T1 represents the same meaning as described above.
- the group represented by Formula (T1-1) is a group represented by Formula (T1-1A), Formula (T1-1B), Formula (T1-1C) or Formula (T1-1D)
- T1-1A The group represented by Formula (T1-1A), Formula (T1-1B), Formula (T1-1C) or Formula (T1-1D)
- X T1 represents the same meaning as described above.
- X T2 and X T3 each independently represent a single bond, an oxygen atom, a sulfur atom, a group represented by -N (R XT2 )-, or a group represented by -C (R XT2 ') 2- Represent.
- R XT2 and R XT2 ′ each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group, a halogen atom or A cyano group is represented, and these groups may have a substituent.
- R XT2 's may be the same or different, and may combine with each other to form a ring together with the atoms to which they are attached.
- R T1 , R T2 , R T3 , R T4 , R T5 , R T6 , R T7 , R T8 , R T9 , R T10 , R T11 and R T12 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group And an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group, a halogen atom or a cyano group, and these groups may have a substituent.
- M represents a ruthenium atom, a rhodium atom, a palladium atom, an iridium atom or a platinum atom.
- n 1 represents an integer of 1 or more
- n 2 represents an integer of 0 or more.
- E 1 and E 2 each independently represent a carbon atom or a nitrogen atom. However, at least one of E 1 and E 2 is a carbon atom.
- Ring L 1 represents a heteroaromatic ring, and this ring may have a substituent. When there are a plurality of such substituents, they may be bonded to each other to form a ring together with the atoms to which they are bonded. When a plurality of rings L 1 exist, they may be the same or different.
- the ring L 2 represents an aromatic hydrocarbon ring or an aromatic heterocyclic ring, and these rings may have a substituent. When there are a plurality of such substituents, they may be bonded to each other to form a ring together with the atoms to which they are bonded.
- a 1 -G 1 -A 2 represents an anionic bidentate ligand.
- Each of A 1 and A 2 independently represents a carbon atom, an oxygen atom or a nitrogen atom, and these atoms may be atoms constituting a ring.
- G 1 represents a single bond or an atomic group constituting a bidentate ligand with A 1 and A 2 .
- the light emitting device wherein the metal complex represented by the formula (1) is a metal complex represented by the formula (1-A).
- M, n 1 , n 2 , E 1 and A 1 -G 1 -A 2 have the same meaning as described above.
- the ring L 1A represents a pyridine ring, a diazabenzene ring, an azanaphthalene ring, a diazanaphthalene ring, a triazole ring or a diazole ring, and these rings may have a substituent. When there are a plurality of such substituents, they may be bonded to each other to form a ring together with the atoms to which they are bonded.
- E 21A , E 22A , E 23A and E 24A each independently represent a nitrogen atom or a carbon atom. When there are a plurality of E 21A , E 22A , E 23A and E 24A , they may be the same or different.
- E 21A is a nitrogen atom
- R 21A is absent.
- E 22A is a nitrogen atom
- R 22A is absent.
- E 23A is a nitrogen atom
- R 23A is absent.
- E 24A is a nitrogen atom, R 24A is absent.
- R 21A , R 22A , R 23A and R 24A are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryloxy group, monovalent heterocyclic group, substituted amino A group or a halogen atom is represented, and these groups may have a substituent.
- R 21A , R 22A , R 23A and R 24A may be the same or different.
- Ring L 2A represents a benzene ring, a pyridine ring or a diazabenzene ring.
- the metal complex represented by the above formula (1-A) is a compound of the formula (1-B1), the formula (1-B2), the formula (1-B3), the formula (1-B4) or the formula (1-)
- n 11 and n 12 each independently represent 1 or 2; However, when M is a ruthenium atom, a rhodium atom or an iridium atom, n 11 + n 12 is 3, and when M is a palladium atom or a platinum atom, n 11 + n 12 is 2.
- R 11B , R 12B , R 13B , R 14B , R 15B , R 16B , R 17B and R 18B each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or an aryl group It represents an oxy group, a monovalent heterocyclic group, a substituted amino group or a halogen atom, and these groups may have a substituent.
- R 11B , R 12B , R 13B , R 14B , R 15B , R 16B , R 17B and R 18B they may be the same or different.
- R 11B and R 12B , R 12B and R 13B , R 13B and R 14B , and R 11B and R 21A respectively combine to form a ring with the atoms to which each is bonded. It may be Wherein (1-B2), R 13B and R 14B, R 13B and R 15B, R 15B and R 16B, R 16B and R 17B, R 17B and R 18B and,, R 18B and R 21A are each bonded And may form a ring together with the atoms to which they are attached.
- R 11 B and R 12 B , R 12 B and R 13 B , R 13 B and R 14 B , R 11 B and R 21 A , R 13 B and R 15 B , R 15 B and R 16 B , R 16 B and R 17 B , R 17B and R 18B and R 18B and R 21A may be combined to form a ring together with the atoms to which they are attached.
- R 11B and R 18B, R 14B and R 15B, R 15B and R 16B, R 16B and R 17B, R 17B and R 18B and,, R 11B and R 21A are each bonded And may form a ring together with the atoms to which they are attached.
- the first organic layer further contains at least one selected from the group consisting of a hole transport material, a hole injection material, an electron transport material, an electron injection material, a fluorescent compound and an antioxidant.
- the light emitting device according to any one of [1] to [11].
- Me represents a methyl group
- Et represents an ethyl group
- Bu represents a butyl group
- i-Pr represents an isopropyl group
- t-Bu represents a tert-butyl group.
- the hydrogen atom may be a deuterium atom or a light hydrogen atom.
- the solid line representing the bond to the central metal means a covalent bond or a coordinate bond.
- the “polymer compound” means a polymer having a molecular weight distribution and having a polystyrene-equivalent number average molecular weight of 1 ⁇ 10 3 to 1 ⁇ 10 8 .
- the polymer compound may be any of a block copolymer, a random copolymer, an alternating copolymer, and a graft copolymer, or may be another embodiment.
- the terminal group of the polymer compound is preferably a stable group since the light emission characteristics or the brightness life may be reduced if the polymerization active group remains as it is. It is.
- the end group of the polymer compound is preferably a group conjugated with the main chain, and for example, an aryl group or a monovalent heterocyclic group bonded to the main chain of the polymer compound via a carbon-carbon bond. Can be mentioned.
- the “low molecular weight compound” means a compound having no molecular weight distribution and having a molecular weight of 1 ⁇ 10 4 or less.
- the "constituent unit” means a unit which is present one or more in the polymer compound.
- the “alkyl group” may be linear or branched.
- the carbon atom number of the linear alkyl group is usually 1 to 50, preferably 3 to 30, and more preferably 4 to 20, not including the carbon atom number of the substituent.
- the carbon atom number of the branched alkyl group is usually 3 to 50, preferably 3 to 30, and more preferably 4 to 20, not including the carbon atom number of the substituent.
- the alkyl group may have a substituent, and examples thereof include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a 2-butyl group, an isobutyl group, a tert-butyl group, a pentyl group and an isoamyl group 2-ethylbutyl, hexyl, heptyl, octyl, 2-ethylhexyl, 3-propylheptyl, decyl, 3,7-dimethyloctyl, 2-ethyloctyl, 2-hexyldecyl, dodecyl And a group in which a hydrogen atom in these groups is substituted with a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, a fluorine atom or the like (for example, a trifluoromethyl group
- the number of carbon atoms of the "cycloalkyl group” is usually 3 to 50, preferably 3 to 30, and more preferably 4 to 20, not including the number of carbon atoms of the substituent.
- the cycloalkyl group may have a substituent, and examples thereof include a cyclohexyl group, a cyclohexylmethyl group and a cyclohexylethyl group.
- the “aryl group” means an atomic group remaining after removing one hydrogen atom directly bonded to a carbon atom constituting a ring from an aromatic hydrocarbon.
- the carbon atom number of the aryl group is usually 6 to 60, preferably 6 to 20, more preferably 6 to 10, not including the carbon atom number of the substituent.
- the aryl group may have a substituent, and examples thereof include phenyl, 1-naphthyl, 2-naphthyl, 1-anthracenyl, 2-anthracenyl, 9-anthracenyl, 1-pyrenyl, 2 -Pyrenyl group, 4-pyrenyl group, 2-fluorenyl group, 3-fluorenyl group, 4-fluorenyl group, 2-phenylphenyl group, 3-phenylphenyl group, 4-phenylphenyl group, and hydrogen atom in these groups Are groups substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, a fluorine atom or the like.
- the "alkoxy group” may be linear or branched.
- the carbon atom number of the linear alkoxy group is usually 1 to 40, preferably 4 to 10, not including the carbon atom number of the substituent.
- the carbon atom number of the branched alkoxy group is usually 3 to 40, preferably 4 to 10, not including the carbon atom number of the substituent.
- the alkoxy group may have a substituent, and examples thereof include a methoxy group, an ethoxy group, a propyloxy group, an isopropyloxy group, a butyloxy group, an isobutyloxy group, a tert-butyloxy group, a pentyloxy group, a hexyloxy group, And heptyloxy group, octyloxy group, 2-ethylhexyloxy group, nonyloxy group, decyloxy group, 3, 7-dimethyloctyloxy group, lauryloxy group, and a hydrogen atom in these groups is a cycloalkyl group, an alkoxy group, Examples thereof include groups substituted with a cycloalkoxy group, an aryl group, a fluorine atom and the like.
- the carbon atom number of the "cycloalkoxy group” is usually 3 to 40, preferably 4 to 10, not including the carbon atom number of the substituent.
- the cycloalkoxy group may have a substituent, and examples thereof include a cyclohexyloxy group.
- the number of carbon atoms of the “aryloxy group” is usually 6 to 60, preferably 6 to 48, not including the number of carbon atoms of the substituent.
- the aryloxy group may have a substituent, and examples thereof include phenoxy group, 1-naphthyloxy group, 2-naphthyloxy group, 1-anthracenyloxy group, 9-anthracenyloxy group, 1- Pyrenyloxy groups and groups in which a hydrogen atom in these groups is substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, a fluorine atom or the like can be mentioned.
- the “p-valent heterocyclic group” (p represents an integer of 1 or more) means p out of hydrogen atoms directly bonded to a carbon atom or a hetero atom constituting a ring from the heterocyclic compound. Means the remaining atomic groups excluding the hydrogen atom of Among p-valent heterocyclic groups, carbon atoms constituting the ring or the remaining atomic groups obtained by removing p hydrogen atoms from hydrogen atoms directly bonded to a hetero atom from an aromatic heterocyclic compound "P-valent aromatic heterocyclic group” is preferred.
- the “aromatic heterocyclic compound” is a complex such as oxadiazole, thiadiazole, thiazole, oxazole, thiophene, pyrrole, phosphole, furan, pyridine, pyrazine, pyrimidine, triazine, pyridazine, quinoline, isoquinoline, carbazole, dibenzophosphole etc.
- Compounds in which the ring itself exhibits aromaticity, and heterocycles such as phenoxazine, phenothiazine, dibenzoborole, dibenzosilole, benzopyran and the like themselves do not exhibit aromaticity, but an aromatic ring is fused to the heterocycle. It means a compound.
- the carbon atom number of the monovalent heterocyclic group is usually 2 to 60, preferably 4 to 20, not including the carbon atom number of the substituent.
- the monovalent heterocyclic group may have a substituent, and examples thereof include thienyl group, pyrrolyl group, furyl group, pyridinyl group, piperidinyl group, quinolinyl group, isoquinolinyl group, pyrimidinyl group, triazinyl group, and the like Groups in which a hydrogen atom in any of the groups is substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or the like.
- halogen atom represents a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- the "amino group” may have a substituent and is preferably a substituted amino group.
- a substituent which an amino group has an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group is preferable.
- the substituted amino group include dialkylamino group, dicycloalkylamino group and diarylamino group.
- the amino group include dimethylamino, diethylamino, diphenylamino, bis (4-methylphenyl) amino, bis (4-tert-butylphenyl) amino, and bis (3,5-di-tert-). And butylphenyl) amino.
- the "alkenyl group” may be linear or branched.
- the carbon atom number of the linear alkenyl group is usually 2 to 30, preferably 3 to 20, not including the carbon atom number of the substituent.
- the carbon atom number of the branched alkenyl group is usually 3 to 30, preferably 4 to 20, not including the carbon atom number of the substituent.
- the number of carbon atoms of the "cycloalkenyl group” is usually 3 to 30, preferably 4 to 20, not including the number of carbon atoms of the substituent.
- the alkenyl group and cycloalkenyl group may have a substituent, and examples thereof include a vinyl group, 1-propenyl group, 2-propenyl group, 2-butenyl group, 3-butenyl group, 3-pentenyl group, 4- Examples include pentenyl group, 1-hexenyl group, 5-hexenyl group, 7-octenyl group, and groups in which these groups have a substituent.
- the "alkynyl group” may be linear or branched.
- the carbon atom number of the alkynyl group is usually 2 to 20, preferably 3 to 20, not including the carbon atom of the substituent.
- the carbon atom number of the branched alkynyl group is usually 4 to 30, preferably 4 to 20, not including the carbon atom of the substituent.
- the number of carbon atoms of the “cycloalkynyl group” is usually 4 to 30, preferably 4 to 20, not including the carbon atom of the substituent.
- the alkynyl group and cycloalkynyl group may have a substituent, and examples thereof include ethynyl group, 1-propynyl group, 2-propynyl group, 2-butynyl group, 3-butynyl group, 3-pentynyl group, 4- Examples include pentynyl group, 1-hexynyl group, 5-hexynyl group, and groups in which these groups have a substituent.
- the "arylene group” means an atomic group remaining after removing two hydrogen atoms directly bonded to carbon atoms constituting a ring from an aromatic hydrocarbon.
- the carbon atom number of the arylene group is usually 6 to 60, preferably 6 to 30, and more preferably 6 to 18, not including the carbon atom number of the substituent.
- the arylene group may have a substituent, and examples thereof include phenylene group, naphthalenediyl group, anthracenediyl group, phenanthrendiyl group, dihydrophenanthrendiyl group, naphthacene diyl group, fluorenediyl group, pyrene diyl group, perylene diyl group, There may be mentioned a chrysendiyl group and a group in which these groups have a substituent, and preferably a group represented by the formula (A-1) to the formula (A-20).
- the arylene group includes a group in which a plurality of these groups are bonded.
- R and R a each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group.
- Plural R and R a may be the same as or different from each other, and R a may be bonded to each other to form a ring together with the atoms to which each is bonded.
- the carbon atom number of the divalent heterocyclic group is usually 2 to 60, preferably 3 to 20, more preferably 4 to 15, not including the carbon atom number of the substituent.
- the divalent heterocyclic group may have a substituent, and examples thereof include pyridine, diazabenzene, triazine, azanaphthalene, diazanaphthalene, carbazole, dibenzofuran, dibenzothiophene, dibenzosilole, phenoxazine, phenothiazine, acridine, and the like.
- dihydroacridines furans, thiophenes, azoles, diazoles and triazoles
- divalent groups in which two hydrogen atoms of hydrogen atoms directly bonded to ring carbon atoms or hetero atoms are removed, preferably Is a group represented by formula (AA-1) to formula (AA-34).
- the divalent heterocyclic group includes a group in which a plurality of these groups are bonded.
- crosslinking group is a group capable of generating a new bond by being subjected to heat treatment, ultraviolet irradiation treatment, near ultraviolet irradiation treatment, visible light irradiation treatment, infrared irradiation treatment, radical reaction, etc.
- they are the crosslinking groups represented by formulas (XL-1) to (XL-19) of the crosslinking group A group.
- the “substituent” is a halogen atom, cyano group, alkyl group, cycloalkyl group, aryl group, monovalent heterocyclic group, alkoxy group, cycloalkoxy group, aryloxy group, amino group, substituted amino group, alkenyl group And a cycloalkenyl group, an alkynyl group or a cycloalkynyl group.
- the substituent may be a crosslinking group.
- the light emitting device of the present invention is A light emitting device comprising an anode, a cathode, a first organic layer provided between the anode and the cathode, and a second organic layer provided between the anode and the cathode, A layer comprising a first organic layer, and a phosphorescent transition metal complex and at least one of the group consisting of requirement (I) and requirement (II), and containing a transition metal-free low molecular weight compound
- the second organic layer is a layer containing a crosslinked product of a polymer compound containing a structural unit having a crosslinking group, and the energy level of the lowest triplet excited state of the polymer compound is 2.30 eV or more. It is a light emitting element.
- Examples of the method of forming the first organic layer and the second organic layer include dry methods such as vacuum deposition, and wet methods such as spin coating and inkjet printing, with wet methods being preferable.
- dry methods such as vacuum deposition
- wet methods such as spin coating and inkjet printing
- wet methods being preferable.
- the first organic layer is formed by a wet method, it is preferable to use a first ink described later.
- the second organic layer is formed by a wet method, it is preferable to use a second ink described later. After forming the second organic layer, heating or light irradiation can crosslink the polymer compound including the structural unit having a crosslinking group contained in the second organic layer. After forming the second organic layer, it is preferable to crosslink the polymer compound containing the structural unit having a crosslinking group contained in the second organic layer by heating. Since the second organic layer is contained in a crosslinked state of the polymer compound containing the structural unit having a crosslinking group (crosslinked body of the polymer compound containing the structural unit having a crosslinking group), the second organic layer Is substantially insolubilized in the solvent. Therefore, the second organic layer can be suitably used for laminating light emitting elements.
- the heating temperature for crosslinking is usually 25 ° C. to 300 ° C., preferably 50 ° C. to 260 ° C., more preferably 130 ° C. to 230 ° C., still more preferably 180 ° C. to 210 ° C. .
- the heating time is usually 0.1 minutes to 1000 minutes, preferably 0.5 minutes to 500 minutes, more preferably 1 minute to 120 minutes, and still more preferably 10 minutes to 60 minutes.
- the type of light used for light irradiation is, for example, ultraviolet light, near ultraviolet light, or visible light.
- chemical separation analysis such as extraction, infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (NMR), Instrumental analysis methods such as mass spectrometry (MS), and analysis methods combining chemical separation analysis method and instrumental analysis method can be mentioned.
- IR infrared spectroscopy
- NMR nuclear magnetic resonance spectroscopy
- MS mass spectrometry
- a component substantially insoluble in the organic solvent insoluble It is possible to separate into components (components) and components (soluble components) that dissolve in organic solvents.
- the insoluble component can be analyzed by infrared spectroscopy or nuclear magnetic resonance spectroscopy, and the dissolved component can be analyzed by nuclear magnetic resonance spectroscopy or mass spectrometry.
- phosphorescent transition metal complex contained in the first organic layer in the light emitting element of the present invention is described.
- the “phosphorescent transition metal complex” usually means a compound which exhibits phosphorescence at room temperature (25 ° C.), preferably a metal complex which emits light from a triplet excited state at room temperature.
- the metal complex that emits light from this triplet excited state has a central metal atom and a ligand.
- the central metal atom includes, for example, a metal atom having an atomic number of 40 or more, which has spin-orbit interaction in the complex and can cause intersystem crossing between singlet state and triplet state.
- a metal atom a ruthenium atom, a rhodium atom, a palladium atom, an iridium atom, and a platinum atom are mentioned, for example, Since the external quantum efficiency of the light emitting element of this invention is more excellent, Preferably it is an iridium atom or a platinum atom.
- a neutral or anionic monodentate ligand which forms at least one kind of bond selected from the group consisting of a coordinate bond and a covalent bond with a central metal atom, or Neutral or anionic polydentate ligands can be mentioned.
- the bond between the central metal atom and the ligand includes, for example, metal-nitrogen bond, metal-carbon bond, metal-oxygen bond, metal-phosphorus bond, metal-sulfur bond and metal-halogen bond.
- the polydentate ligand usually means a bidentate to six-dentate ligand.
- the phosphorescent transition metal complex is preferably a metal complex represented by the formula (1) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- M is preferably an iridium atom or a platinum atom, and more preferably an iridium atom, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- M is a ruthenium atom, a rhodium atom or an iridium atom
- n 1 is preferably 2 or 3, and more preferably 3.
- M is a palladium atom or a platinum atom
- n 1 is preferably 2.
- E 1 and E 2 are preferably carbon atoms.
- the carbon atom number of the aromatic heterocyclic ring represented by ring L 1 is usually 2 to 60, preferably 3 to 30, and more preferably 4 to 15, not including the carbon atom number of the substituent. is there.
- the ring L 1 is preferably a 5-membered aromatic heterocycle or a 6-membered aromatic heterocycle, and is a 5-membered aromatic heterocycle having one or more and four or less nitrogen atoms as a constituent atom or one More preferably, it is a 6-membered aromatic heterocyclic ring having a nitrogen atom of 4 or less as a constituent atom, and these rings may have a substituent.
- E 1 is preferably a carbon atom.
- the ring L 1 includes, for example, diazole ring, triazole ring, tetrazole ring, pyridine ring, diazabenzene ring, triazine ring, azanaphthalene ring and diazanaphthalene ring, preferably pyridine ring, diazabenzene ring, azanaphthalene ring A diazanaphthalene ring, a triazole ring or a diazole ring, more preferably a pyridine ring, a diazabenzene ring, an azanaphthalene ring, a diazanaphthalene ring, and even more preferably a pyridine ring, a quinoline ring or an isoquinoline ring, These rings may have a substituent.
- the number of carbon atoms of the aromatic hydrocarbon ring represented by ring L 2 is usually 6 to 60, preferably 6 to 30, and more preferably 6 to 18, not including the number of carbon atoms of the substituent. It is.
- the aromatic hydrocarbon ring represented by ring L 2 include a benzene ring, a naphthalene ring, an indene ring, a fluorene ring, a phenanthrene ring, a dihydrophenanthrene ring and a ring formed by condensing two or more and five or less of these rings.
- a benzene ring, a naphthalene ring, a fluorene ring, a phenanthrene ring or a dihydrophenanthrene ring is preferable, and more preferably a benzene ring, a fluorene ring or a dihydrophenanthrene ring More preferably, it is a benzene ring, and these rings may have a substituent.
- the carbon atom number of the aromatic heterocyclic ring represented by ring L 2 is usually 2 to 60, preferably 3 to 30, and more preferably 4 to 15, not including the carbon atom number of the substituent. is there.
- Examples of the aromatic heterocyclic ring represented by ring L 2 include a pyrrole ring, a diazole ring, a furan ring, a thiophene ring, a pyridine ring, a diazabenzene ring and a ring having one or more and five or less aromatic rings fused to these rings.
- the ring of may have a substituent.
- E 2 is preferably a carbon atom.
- the ring L 2 is preferably a benzene ring, a fluorene ring, a dihydrophenanthrene ring, a pyridine ring, a diazabenzene ring, a carbazole ring, a dibenzofuran ring or a dibenzothiophene ring, because the external quantum efficiency of the light emitting device of the present invention is further excellent. More preferably, it is a benzene ring, a pyridine ring or a diazabenzene ring, more preferably a benzene ring, and these rings may have a substituent.
- the substituent which ring L 1 and ring L 2 may have is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, It is a substituted amino group or a halogen atom, more preferably an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, still more preferably an alkyl group, an aryl group or a monovalent complex It is a ring group, particularly preferably an aryl group or a monovalent heterocyclic group, and these groups may further have a substituent.
- At least one of the ring L 1 and the ring L 2 preferably has a substituent because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the aryl group in the substituent which may be possessed by ring L 1 and ring L 2 is preferably a phenyl group, a naphthyl group, a phentrenyl group, a dihydrophentrenyl group or a fluorenyl group, and a phenyl group or a fluorenyl group Is more preferable, a phenyl group is more preferable, and these groups may have a substituent.
- the monovalent heterocyclic group in the substituent which may be possessed by ring L 1 and ring L 2 is pyridyl group, pyrimidinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, dibenzofuranyl group, dibenzothienyl group, Carbazolyl group, azacarbazolyl group, diazacarbazolyl group, phenoxazinyl group or phenothiazinyl group is preferable, and pyridyl group, pyrimidinyl group, triazinyl group, dibenzofuranyl group, dibenzothienyl group or carbazolyl group is more preferable, pyridyl group, pyrimidinyl group Further preferred is a group or a triazinyl group, and these groups may have a substituent.
- Groups may further have a substituent.
- the example and the preferable range of the aryl group in the substituent which an amino group has are the same as the example and the preferable range of the aryl group in the substituent which the ring L 1 and the ring L 2 may have.
- the example and the preferred range of the monovalent heterocyclic group in the substituent which the amino group has is the same as the example and the preferred range of the monovalent heterocyclic group in the substituent which the ring L 1 and the ring L 2 may have. It is.
- the substituent which the substituent which ring L 1 and ring L 2 may optionally have may further have is preferably an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted group. It is an amino group, more preferably an alkyl group, a cycloalkyl group or an aryl group, still more preferably an alkyl group, and these groups may further have a substituent.
- the aryl group, monovalent heterocyclic group or substituted amino group in the substituent which may be possessed by ring L 1 and ring L 2 is preferably a compound of the formula (B) because the external quantum efficiency of the light emitting device of the present invention is more excellent. It is a group represented by D-A), formula (D-B) or formula (D-C), more preferably a group represented by formula (D-A) or formula (D-B).
- m DA1 , m DA2 and m DA3 each independently represent an integer of 0 or more.
- G DA represents a nitrogen atom, an aromatic hydrocarbon group or a heterocyclic group, and these groups may have a substituent.
- Ar DA1 , Ar DA2 and Ar DA3 each independently represent an arylene group or a divalent heterocyclic group, and these groups may have a substituent.
- T DA represents an aryl group or a monovalent heterocyclic group, and these groups may have a substituent. The plurality of TDAs may be the same or different.
- m DA1 , m DA2 , m DA3 , m DA4 , m DA5 , m DA6 and m DA7 each independently represent an integer of 0 or more.
- G DA represents a nitrogen atom, an aromatic hydrocarbon group or a heterocyclic group, and these groups may have a substituent.
- a plurality of G DAs may be the same or different.
- Ar DA1 , Ar DA2 , Ar DA3 , Ar DA4 , Ar DA5 , Ar DA6 and Ar DA7 each independently represent an arylene group or a divalent heterocyclic group, and these groups may have a substituent Good.
- T DA represents an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- the plurality of TDAs may be the same or different.
- m DA1 represents an integer of 0 or more.
- Ar DA1 represents an arylene group or a divalent heterocyclic group, and these groups may have a substituent. When there are a plurality of Ar DA1 , they may be the same or different.
- T DA represents an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- m DA1 , m DA2 , m DA3 , m DA4 , m DA5 , m DA6 and m DA7 are usually integers of 10 or less, preferably 5 or less, more preferably 2 or less, further Preferably it is 0 or 1.
- m DA2 , m DA3 , m DA4 , m DA5 , m DA6 and m DA7 are preferably the same integer.
- G DA is preferably an aromatic hydrocarbon group or a heterocyclic group, more preferably a hydrogen directly bonded to a carbon atom or nitrogen atom constituting a ring from a benzene ring, a pyridine ring, a pyrimidine ring, a triazine ring or a carbazole ring It is a group formed by removing 3 atoms, and these groups may have a substituent.
- the substituent that G DA may have is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and more preferably an alkyl group, It is a cycloalkyl group, an alkoxy group or a cycloalkoxy group, more preferably an alkyl group or a cycloalkyl group, and these groups may have a substituent.
- G DA is preferably a group represented by Formula (GDA-11) to Formula (GDA-15), more preferably a group represented by Formula (GDA-11) to Formula (GDA-14) And more preferably a group represented by the formula (GDA-11) or the formula (GDA-14).
- R DA represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups may further have a substituent. When there are a plurality of RDAs , they may be the same or different. ]
- R DA is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group or a cycloalkoxy group, more preferably a hydrogen atom, an alkyl group or a cycloalkyl group, and these groups have a substituent May be
- Ar DA1 , Ar DA2 , Ar DA3 , Ar DA4 , Ar DA5 , Ar DA6 and Ar DA7 are preferably a phenylene group, a fluorenedyl group or a carbazole diyl group, and more preferably a formula (ArDA-1) to a formula It is a group represented by (ArDA-5), more preferably a group represented by the formulas (ArDA-1) to (ArDA-3), and particularly preferably a group represented by the formula (ArDA-2) These groups may have a substituent.
- R DA has the same meaning as described above.
- R DB represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent. When there are multiple R DBs , they may be the same or different. ]
- R DB is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group or a monovalent heterocyclic group, still more preferably an aryl group, The group may have a substituent.
- Examples and preferred ranges of the substituents which may be possessed by Ar DA1 , Ar DA2 , Ar DA3 , Ar DA4 , Ar DA5 , Ar DA6 and Ar DA7 are examples of substituents which G DA may have and It is the same as the preferred range.
- T DA is preferably a group represented by Formula (TDA-1) to Formula (TDA-3), and more preferably a group represented by Formula (TDA-1).
- R DA and R DB represent the same meaning as described above.
- the group represented by Formula (DA) is preferably a group represented by Formula (D-A1) to Formula (D-A5), and more preferably Formula (D-A1) or Formula (D-A3) A group represented by formula (D-A5), more preferably a group represented by formula (D-A1), formula (D-A3) or formula (D-A5).
- R p1 , R p2 , R p3 and R p4 each independently represent an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or a halogen atom.
- R p1 , R p2 and R p4 may be the same or different.
- np1 represents an integer of 0 to 5
- np2 represents an integer of 0 to 3
- np3 represents 0 or 1
- np4 represents an integer of 0 to 4.
- the plurality of np1 may be the same or different.
- the group represented by Formula (DB) is preferably a group represented by Formula (D-B1) to Formula (D-B3), more preferably a group represented by Formula (D-B1) .
- R p1 , R p2 and R p3 each independently represent an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or a halogen atom.
- R p1 and R p2 they may be the same or different.
- np1 represents an integer of 0 to 5
- np2 represents an integer of 0 to 3
- np3 represents 0 or 1.
- np1 and np2 may be the same or different.
- the group represented by Formula (DC) is preferably a group represented by Formula (D-C1) to Formula (D-C4), and more preferably Formula (D-C1) to Formula (D-C3) And more preferably a group represented by the formula (D-C1) or the formula (D-C2), and particularly preferably a group represented by the formula (D-C1).
- R p4 , R p5 and R p6 each independently represent an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or a halogen atom. When there are a plurality of R p4 , R p5 and R p6 , they may be the same or different.
- np4 represents an integer of 0 to 4
- np5 represents an integer of 0 to 5
- np6 represents an integer of 0 to 5.
- Np1 is preferably an integer of 0 to 2, more preferably 0 or 1.
- np2 is preferably 0 or 1
- np3 is preferably 0.
- np4 is preferably an integer of 0 to 2
- np5 is preferably an integer of 0 to 3, more preferably 0 or 1.
- np6 is preferably an integer of 0 to 2, more preferably 0 or 1.
- the alkyl group or cycloalkyl group in R p1 , R p2 , R p3 , R p4 , R p5 and R p6 is preferably a methyl group, an ethyl group, an isopropyl group, an tert-butyl group, a hexyl group, 2-ethylhexyl A cyclohexyl group or a tert-octyl group.
- the alkoxy group or cycloalkoxy group in R p1 , R p2 , R p3 , R p4 , R p5 and R p6 is preferably a methoxy group, a 2-ethylhexyloxy group or a cyclohexyloxy group.
- R p1 , R p2 , R p3 , R p4 , R p5 and R p6 are preferably an alkyl group which may have a substituent or a cycloalkyl group which may have a substituent, and It is preferably an alkyl group which may have a substituent, and more preferably a methyl group, an ethyl group, an isopropyl group, a tert-butyl group, a hexyl group, a 2-ethylhexyl group or a tert-octyl group.
- substituents which may be possessed by the ring L 1 are present, they are preferably bonded to each other so as not to form a ring together with the atoms to which they are bonded.
- substituents which may be possessed by the ring L 2 are present, they are preferably bonded to each other so as not to form a ring together with the atoms to which they are bonded. It is preferable that the substituent which the ring L 1 may have and the substituent which the ring L 2 may have are bonded to each other and do not form a ring with the atoms to which they are bonded.
- anionic bidentate ligand examples include a ligand represented by the following formula. .
- the anionic bidentate ligand represented by A 1 -G 1 -A 2 is different from the ligand whose number is defined by the index n 1 .
- the metal complex represented by the formula (1) is preferably a metal complex represented by the formula (1-A) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the ring L 1A is preferably a pyridine ring, a diazabenzene ring, an azanaphthalene ring or a diazanaphthalene ring, and more preferably a pyridine ring, a quinoline ring or an isoquinoline ring, because the external quantum efficiency of the light emitting device of the present invention is more excellent. It is a ring, and these rings may have a substituent.
- the examples and the preferred ranges of the substituent which the ring L 1A may have are the same as the examples and the preferred range of the substituent which the ring L 1 and the ring L 2 may have. When a plurality of substituents that the ring L 1A may have are present, they are preferably bonded to each other and do not form a ring with the atoms to which they are bonded.
- ring L 2A is a pyridine ring
- a pyridine ring in which E 21A is a nitrogen atom a pyridine ring in which E 22A is a nitrogen atom, or a pyridine ring in which E 23A is a nitrogen atom is preferable
- E 22A is a nitrogen atom
- ring L 2A is a diazabenzene ring
- a pyrimidine ring wherein E 21A and E 23A is a nitrogen atom or a pyrimidine ring wherein E 22A and E 24A are a nitrogen atom is preferable, and E 22A and E 24A are a nitrogen atom
- the pyrimidine ring is more preferred.
- the ring L 2A is preferably a benzene ring.
- E 21A , E 22A , E 23A and E 24A are preferably carbon atoms.
- R 21A , R 22A , R 23A and R 24A are preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a monovalent heterocyclic group because the external quantum efficiency of the light emitting device of the present invention is more excellent. It is a substituted amino group, more preferably a hydrogen atom, an alkyl group or an aryl group, and these groups may have a substituent.
- R 21A and R 24A are more preferably hydrogen atoms.
- R 22A is more preferably a hydrogen atom or an aryl group which may have a substituent.
- R 23A is more preferably a hydrogen atom or an alkyl group which may have a substituent.
- At least one of the ring L 1A has a substituent, or R 21A , R 22A , R It is preferable that at least one of 23A and R 24A be an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group or a halogen atom.
- At least one of R 21A , R 22A , R 23A and R 24A is an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group or a halogen atom
- at least one of R 22A and R 23A is an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, or a monovalent group because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- R 22A and R 23A is an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group. More preferably, these groups may have a substituent.
- Examples and preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in R 21A , R 22A , R 23A and R 24A are the substituents that ring L 1 and ring L 2 may have, respectively. The same applies to the examples and preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in the above. Examples and preferred ranges of the substituent which may be possessed by R 21A , R 22A , R 23A and R 24A further include the substituent which the ring L 1 and the ring L 2 may optionally have. It is the same as the example and the preferable range of a good substituent.
- R 21A and R 22A , R 22A and R 23A , R 23A and R 24A , and a substituent which may be possessed by the ring L 1A and R 21A respectively combine to form a ring together with the atoms to which they are attached It is preferable not to form.
- the metal complex represented by the formula (1-A) is preferably represented by the formula (1-A1) to the formula (1-A4) or the formula (1-B1) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- a metal complex represented by formula (1-B5), more preferably a metal complex represented by formula (1-B1) to formula (1-B5), and still more preferably a metal complex represented by formula (1-B5) It is a metal complex represented by B1), formula (1-B2) or formula (1-B3), and particularly preferably a metal complex represented by formula (1-B1).
- M, n 1 , n 2 , R 21A , R 22A , R 23A , R 24A and A 1 -G 1 -A 2 represent the same meaning as described above.
- R 11A , R 12A and R 13A are each independently a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group or a halogen Represents an atom, and these groups may have a substituent.
- R 11A , R 12A and R 13A they may be the same or different.
- R 11A and R 21A may be bonded to each other to form a ring together with the atoms to which each is bonded.
- R 12A and R 13A may be bonded to each other to form a ring together with the atoms to which each is bonded.
- R 11A and R 12A , R 12A and R 13A , and R 11A and R 21A are respectively bonded to form a ring with the atoms to which each is bonded. It may be done.
- R 11A is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and more preferably an aryl group or a monovalent group
- the heterocyclic group is more preferably an aryl group, and these groups may have a substituent.
- R 12A is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, and more preferably a hydrogen atom or an alkyl group Or an aryl group, more preferably a hydrogen atom, and these groups may have a substituent.
- R 12A is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and more preferably an aryl group or a monovalent group
- the heterocyclic group is more preferably an aryl group, and these groups may have a substituent.
- R 11A is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, and more preferably a hydrogen atom or an alkyl group Or an aryl group, more preferably a hydrogen atom, and these groups may have a substituent.
- R 13A is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, more preferably Is a hydrogen atom, an alkyl group or an aryl group, more preferably a hydrogen atom, and these groups may have a substituent.
- Examples and preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in R 11A , R 12A and R 13A are the aryl groups in the substituents that ring L 1 and ring L 2 may have, respectively. And the same as the examples and preferred ranges of the monovalent heterocyclic group and the substituted amino group.
- R 11A, examples and preferable ranges of R 12A and may be R 13A is have substituents, ring L 1 and the ring L 2 has substituent may further have optionally may substituent And the preferred range.
- R 11A and R 12A , R 12A and R 13A , and R 11A and R 21A are respectively bonded to form a ring with the atoms to which each is bonded. Preferably not.
- R 11 B , R 12 B , R 13 B , R 14 B , R 15 B , R 16 B , R 17 B and R 18 B are preferably a hydrogen atom, an alkyl group, a cycloalkyl because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- R 11B , R 14B , R 15B , R 16B , R 17B and R 18B are preferably a hydrogen atom or an alkyl group, and more preferably a hydrogen atom, because these facilitate the synthesis of metal complexes.
- Groups may have a substituent.
- R 12 B is preferably a hydrogen atom, an aryl group or a monovalent heterocyclic group, more preferably a hydrogen atom, because these compounds further enhance the external quantum efficiency of the light emitting device of the present invention, and these groups are substituted It may have a group.
- R 13 B is preferably a hydrogen atom, an aryl group or a monovalent heterocyclic group, since the external quantum efficiency of the light emitting device of the present invention is further excellent, and these groups may have a substituent.
- Examples and preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in R 11B , R 12B , R 13B , R 14B , R 15B , R 16B , R 17B and R 18B are respectively ring L 1 and The examples and the preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in the substituent which the ring L 2 may have are the same. Examples and preferred ranges of the substituent which R 11B , R 12B , R 13B , R 14B , R 15B , R 16B , R 17B and R 18B may have are the ring L 1 and the ring L 2 have. The same applies to the examples and the preferred ranges of the substituents which may be further substituted.
- R 11B , R 12B , R 13B , R 14B , R 11B , R 12B , R 13B , At least one of R 14B , R 15B , R 16B , R 17B , R 18B , R 21A , R 22A , R 23A and R 24A is an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryl group It is preferably an oxy group, a monovalent heterocyclic group, a substituted amino group or a halogen atom, and at least one of R 12B , R 13B , R 22A and R 23A is an alkyl group, a cycloalkyl group, an alkoxy group, cyclo More preferably, it is an alkoxy group, an aryl
- R 11B and R 12B , R 12B and R 13B , R 13B and R 14B , R 11B and R 21A , R 13B and R 15B , R 15B and R 16B , R 16B and R 17B , R 17B and R 18B , R 18B and R 21A , R 11B and R 18B , R 14B and R 15B , and R 12B and R 18B respectively bind to atoms to which they are bonded And preferably do not form a ring.
- Examples of the phosphorescent transition metal complex include metal complexes represented by the following formula.
- Compound (T)> A low molecular weight compound which does not contain a transition metal, which satisfies at least one of the group consisting of requirement (I) and requirement (II) contained in the first organic layer of the light emitting device of the present invention (hereinafter referred to as “ The compound (T) will be described.
- the compound (T) is preferably a thermally activated delayed fluorescence (TADF) compound.
- the molecular weight of the compound (T) is usually 1 ⁇ 10 2 to 1 ⁇ 10 4 , preferably 2 ⁇ 10 2 to 5 ⁇ 10 3 , more preferably 3 ⁇ 10 2 to 3 ⁇ 10 3 , More preferably, it is 5 ⁇ 10 2 to 1.5 ⁇ 10 3 .
- the absolute value of the difference between the energy level of the lowest triplet excited state and the energy level of the lowest singlet excited state (hereinafter referred to as “ ⁇ E ST ”) is an external value of the light emitting device of the present invention. Since the quantum efficiency is more excellent, it is preferably 0.20 eV or less, and more preferably 0.16 eV or less. In the requirement (I), since the external quantum efficiency of the light emitting device of the present invention is further excellent, ⁇ E ST is preferably 0.001 eV or more and 0.25 eV or less, more preferably 0.01 eV or more and 0.20 eV or less More preferably, they are 0.015 eV or more and 0.16 eV or less.
- ⁇ E ST of the compound is structural optimization of the ground state of the compound by density functional theory at B3LYP level.
- 6-31 G * is used as a basis function.
- ⁇ E ST of the compound is calculated by the time-dependent density functional method of B3LYP level.
- 6-31G * contains an unusable atom
- LANL2DZ is used for the atom.
- it calculates using Gaussian09.
- ⁇ E ST of the compound represented by the formula (T-1) is usually 0.60 eV or less, preferably 0.35 eV, because the external quantum efficiency of the light emitting device of the present invention is more excellent. Or less, more preferably 0.25 eV or less, still more preferably 0.20 eV or less, and particularly preferably 0.16 eV or less.
- ⁇ E ST of the compound represented by the formula (T-1) is further excellent in the external quantum efficiency of the light emitting device of the present invention
- ⁇ E ST is preferably 0.0001 eV or more and 0.40 eV or less, more preferably It is 0.001 eV or more and 0.25 eV or less, more preferably 0.01 eV or more and 0.20 eV or less, and particularly preferably 0.015 eV or more and 0.16 eV or less.
- n T1 is preferably an integer of 0 or more and 3 or less, more preferably 0 or 1, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- n T2 is preferably an integer of 1 or more and 5 or less, more preferably 1 or 2, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- nitrogen atom having no double bond means a nitrogen atom having only a single bond between the nitrogen atom and all atoms bonded to the nitrogen atom.
- “Containing a nitrogen atom having no double bond in the ring” means —N (—R N ) — (wherein, R N represents a hydrogen atom or a substituent) in the ring or a formula:
- the ring is constituted.
- the number of nitrogen atoms having no double bond is usually 1 to 10, preferably 1 to 5, more preferably 1 to 3, and still more preferably 1 or 2.
- the number of carbon atoms constituting the ring is usually 2 to 60, preferably 5 to 40, and more preferably 10 to 25.
- Examples of the monovalent donor heterocyclic group include a pyrrole ring, an indole ring, a carbazole ring, a 9,10-dihydroacridine ring, a 5,10-dihydrophenazine ring, a phenoxazine ring, a phenothiazine ring, and an indolocarbazole ring.
- 1 hydrogen atom directly bonded to a carbon atom or hetero atom constituting a ring from an indenocarbazole ring, or a ring in which one or more and five or more aromatic hydrocarbon rings and / or heterocycles are fused to these heterocycles
- These groups may have a substituent.
- the monovalent donor-type heterocyclic group is preferably a carbazole ring, a 9,10-dihydroacridine ring, a 5,10-dihydrophenazine ring, a phenoxazine ring, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- Examples and preferred ranges of the substituted amino group in Ar T1 are the same as examples and preferred ranges of the substituted amino group in the substituent which may be Ar T1 is have to be described later.
- the substituent which Ar T1 may have is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a monovalent heterocyclic group, a substituted amino group, a halogen It is an atom or a cyano group, more preferably an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, still more preferably an alkyl group, an aryl group or a monovalent heterocyclic group And these groups may further have a substituent.
- Ar T1 may have, preferably, a phenyl group, a naphthyl group, a fentenyl group, a dihydrophenthenyl group or a fluorenyl group is preferable, a phenyl group or a fluorenyl group is more preferable, and a phenyl group is more preferable Groups are more preferable, and these groups may have a substituent.
- pyridyl group As a monovalent heterocyclic group in the substituent which Ar T1 may have, pyridyl group, pyrimidinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, dibenzofuranyl group, dibenzothienyl group, carbazolyl group, azacarbazolyl group , Diazacarbazolyl group, phenoxazinyl group or phenothiazinyl group is preferable, pyridyl group, pyrimidinyl group, triazinyl group, dibenzofuranyl group, dibenzothienyl group or carbazolyl group is more preferable, and dibenzofuranyl group, dibenzothienyl group or Carbazolyl groups are more preferable, and these groups may have a substituent.
- an aryl group is more preferable, and these groups are further substituted It may have a group.
- the example and the preferable range of the aryl group in the substituent which an amino group has are the same as the example and the preferable range of the aryl group in the substituent which Ar T1 may have.
- monohydric heterocyclic group in the substituent which an amino group has are the same as the example and the preferable range of the monovalent
- Preferred examples of the substituent which the substituent which Ar T1 may have may further have preferably include an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, and a monovalent group.
- a heterocyclic group, a substituted amino group, a halogen atom or a cyano group more preferably an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, still more preferably an alkyl group Or an aryl group, which may further have a substituent.
- Ar T1 is an aryl group of the substituent which may further have the substituent which may have, examples and preferable range of the monovalent heterocyclic group and substituted amino group, respectively, Ar T1 is have The examples and the preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in the optional substituents are the same.
- At least one of Ar T1 is preferably a monovalent donor-type heterocyclic group, and more preferably a group represented by formula (T1-1), because the external quantum efficiency of the light-emitting device of the present invention is more excellent.
- These groups may have a substituent. That is, the monovalent donor heterocyclic group is preferably a group represented by Formula (T1-1).
- Ar T1 is preferably a monovalent donor-type heterocyclic group, and more preferably a group represented by Formula (T1-1), because the external quantum efficiency of the light-emitting device of the present invention is further excellent. These groups may have a substituent.
- Ring RT1 and ring RT2 are preferably benzene ring, naphthalene ring, fluorene ring, spirobifluorene ring, phenanthrene ring, dihydrophenanthrene ring, carbazole ring, since the external quantum efficiency of the light emitting device of the present invention is more excellent.
- X T1 is preferably a single bond, an oxygen atom or a sulfur atom, and more preferably a single bond.
- R XT1 is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group or a monovalent heterocyclic group, still more preferably an aryl group These groups may have a substituent.
- R XT1 ′ is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an alkyl group or an aryl group, and still more preferably an alkyl group, The group may have a substituent.
- Examples and preferred ranges of the aryl group, monovalent heterocyclic group and substituted amino group in R XT1 and R XT1 ′ are respectively an aryl group in a substituent which Ar T1 may have and a monovalent heterocyclic group And the same as the examples and preferred ranges of the substituted amino group.
- the group represented by the formula (T1-1) is preferably a group represented by the formula (T1-1A), a formula (T1-1B) or a formula (T1-1C) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- X T2 and X T3 are preferably a single bond, a group represented by -N (R XT2 )-, or a group represented by -C (R XT2 ') 2- . At least one of X T2 and X T3 is preferably a single bond, and more preferably X T3 is a single bond.
- X T2 and X T3 are a single bond
- the other is an oxygen atom, a sulfur atom, a group represented by -N (R XT2 )-, or -C (R XT2 ') 2- It is preferable that it is a group represented by these, and it is more preferable that it is a group represented by -N (R XT2 ) -or a group represented by -C (R XT2 ') 2- .
- Examples and preferred ranges of R XT2 are the same as the examples and preferred ranges of R XT1 .
- Examples and preferred ranges of R XT2 ' are the same as the examples and preferred ranges of R XT1 '.
- Examples and preferred ranges of the substituent that R XT2 and R XT2 ′ may have are the same as the examples and the preferred range of the substituent that R XT1 and R XT1 ′ may have.
- R T1 , R T2 , R T3 , R T4 , R T5 , R T6 , R T7 , R T8 , R T9 , R T10 , R T11 and R T12 each represents a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, It is preferably a monovalent heterocyclic group or a substituted amino group, more preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a monovalent heterocyclic group or a substituted amino group, a hydrogen atom or an alkyl group. More preferably, it is a group, an aryl group or a monovalent heterocyclic group, and these groups may further have a substituent.
- R T1 , R T2 , R T4 , R T5 , R T7 and R T8 are particularly preferably hydrogen atoms.
- Examples and preferred ranges are the same as the examples and preferred ranges of the aryl group, the monovalent heterocyclic group and the substituted amino group in the substituent which Ar T1 may have, respectively.
- Examples and preferred ranges of the substituents which may be possessed by R T1 , R T2 , R T3 , R T4 , R T5 , R T6 , R T7 , R T8 , R T9 , R T10 , R T11 and R T12 are: And the same as the examples and the preferred ranges of the substituent which the substituent which Ar T1 may have may further have.
- L T1 is preferably an arylene group or a divalent heterocyclic group, more preferably an arylene group, and these groups may have a substituent.
- the arylene group represented by L T1 is preferably a group represented by Formula (A-1) to Formula (A-9), Formula (A-19) or Formula (A-20), and Preferably, it is a group represented by Formula (A-1) to Formula (A-3), Formula (A-8) or Formula (A-9), and more preferably, Formula (A-1) or (A These are groups represented by A-2), and these groups may have a substituent.
- the divalent heterocyclic group represented by L T1 is preferably a group represented by the formula (AA-1) to the formula (AA-6), a formula (AA-10) to the formula (AA-15) or a formula (AA-). 18) to a group represented by the formula (AA-22), more preferably a group represented by the formula (AA-1) to the formula (AA-4) or the formula (AA-10) to the formula (AA-15) .
- the example and the preferable range of a substituent which L T1 may have are the same as the examples and a preferable range of a substituent which Ar T1 may have.
- R T1 ′ is preferably an aryl group or a monovalent heterocyclic group, more preferably an aryl group, and these groups may have a substituent.
- the example and the preferred range of the aryl group and the monovalent heterocyclic group in R T1 ′ are the same as the examples and the preferred range of the aryl group and the monovalent heterocyclic group in the substituent which Ar T1 may have, respectively. It is.
- the example and the preferable range of the substituent which RT1 'may have are the same as the example and the preferable range of the substituent which the substituent which Ar T1 may have may further have.
- the carbon atom number of the aromatic hydrocarbon group represented by Ar T2 is usually 6 to 60, preferably 6 to 30, and more preferably 6 to 18, not including the carbon atom number of the substituent. is there.
- a group in which one or more hydrogen atoms directly bonded to carbon atoms constituting the ring are removed from a naphthoquinone ring, an anthraquinone ring, a phenanthrene quinone ring, a fluorenone ring or a phenanthrenone ring, and these groups are substituted It may have a group.
- Examples of the electron withdrawing group include an alkyl group having a fluorine atom as a substituent, a fluorine atom, a cyano group, a nitro group, an acyl group and a carboxyl group, and preferably an alkyl group having a fluorine atom as a substituent A fluorine atom, a cyano group or an acyl group, more preferably a cyano group.
- the alkyl group having a fluorine atom as a substituent is preferably a trifluoromethyl group, a pentafluoroethyl group, a perfluorobutyl group, a perfluorohexyl group or a perfluorooctyl group.
- the number of electron-withdrawing groups that the aromatic hydrocarbon group has is usually 1 to 10, preferably 1 to 5 and more The number is preferably 1 to 3, and more preferably 1 or 2.
- the carbon atom number of the heterocyclic group represented by Ar T2 is usually 2 to 60, preferably 2 to 30, and more preferably 3 to 15, not including the carbon atom number of the substituent.
- It is a heterocyclic group of a condensed ring containing at least one group selected from the group consisting of: a single ring hetero ring containing two or more groups represented by N- in the ring. It is a ring group, and these groups may have a substituent.
- a heterocyclic group of a fused ring containing at least one group selected from the group consisting of groups, benzothiophene dioxide ring, benzothiophene oxide ring, benzopyranone ring, azanaphthalene ring, diazanaphthalene ring, triazanaphthalene ring, An azaindole ring, a diazaindole ring, a quinolinone ring, a benzodiazole ring, a benzotriazole ring, a benzooxadiazole ring, a benzothiadiazole ring, a ring in which one to five aromatic rings are fused to these rings, or It is a group obtained by removing one or more hydrogen atoms directly bonded to atoms
- a heterocyclic group of a fused ring containing at least one group selected from the group consisting of, more preferably a heterocyclic group of a fused ring containing a group represented by -S ( O) 2- , and these groups May have a substituent.
- the heterocyclic group is preferably a group obtained by removing one or more hydrogen atoms directly bonded to atoms constituting a ring from a pyridine ring, a diazole ring, a dibenzofuran ring or a dibenzothiophene ring, and these groups are substituents May be included.
- a heterocyclic group of a condensed ring containing at least one group, an aromatic hydrocarbon group containing a group represented by -C ( O)-in the ring, or an aromatic hydrocarbon having an electron-withdrawing group
- an alkyl group, a cycloalkyl group and an alkoxy group are preferable.
- the example and the preferable range of the aryl group in the substituent which Ar T2 may have are the same as the example and the preferable range of the aryl group in the substituent which Ar T1 may have.
- the monovalent heterocyclic group other than the monovalent donor type heterocyclic group is preferably pyridyl group, pyrimidinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, dibenzofuranyl group, dibenzothienyl group, azacarbazolyl group, or It is a diazacarbazolyl group, more preferably a pyridyl group, a pyrimidinyl group or a triazinyl group, and these groups may further have a substituent.
- the example and the preferable range of the substituent which the substituent which Ar T2 may have may further have are the substituents of the substituent which Ar T1 may have may further have. Same as example and preferred range.
- the compound represented by the formula (T-1) is preferably a compound represented by the formula (T′-1) to the formula (T′-16) because the external quantum efficiency of the light emitting device of the present invention is more excellent. And more preferably a compound represented by Formula (T'-1) to Formula (T'-5) or Formula (T'-10) to Formula (T'-12), and still more preferably It is a compound represented by the formula (T′-1) or the formula (T′-3), and particularly preferably a compound represented by the formula (T′-3).
- T X1 represents an oxygen atom, a sulfur atom or a group represented by —N (R 1T ) —.
- R 1T and R 1T ′ each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, or a monovalent complex other than a monovalent donor heterocyclic group
- a ring group, an electron withdrawing group or a group represented by the formula (1T ′) is represented, and these groups may have a substituent.
- Plural R 1Ts may be the same or different. However, among the R 1T presence of a plurality of, at least one is a group represented by the formula (1T '). Plural R 1T 's may be the same or different. However, among the plurality of R 1T 's, at least one is a group represented by formula (1T'), and at least one is an electron-withdrawing group. ]
- T X1 is preferably a group represented by —N (R 1T ) —.
- R 1T is preferably a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group other than a monovalent donor-type heterocyclic group, an electron-withdrawing group or a group represented by formula (1T ′) And more preferably a hydrogen atom, an alkyl group, an aryl group or a group represented by the formula (1T ′), and still more preferably a hydrogen atom, an aryl group or a group represented by the formula (1T ′) These groups may have a substituent. However, among the R 1T presence of a plurality of, at least one is a group represented by the formula (1T ').
- R 1T ′ is preferably a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group other than a monovalent donor-type heterocyclic group, an electron-withdrawing group or a group represented by the formula (1T ′) And more preferably a hydrogen atom, an alkyl group, an aryl group, an electron withdrawing group or a group represented by the formula (1T ′), and still more preferably a hydrogen atom, an electron withdrawing group or a formula It is a group represented by 1T '), and these groups may have a substituent. However, among the plurality of R 1T 's, at least one is a group represented by formula (1T'), and at least one is an electron-withdrawing group. ]
- the example and the preferable range of the substituent which R 1T and R 1T ′ may have are the same as the example and the preferable range of the substituent which the substituent which Ar T1 may have may further have. It is.
- R 1T presence of a plurality of one or two R 1T is preferably a group represented by the formula (1T ').
- 1 to 5 R 1T ' s are preferably a group represented by formula (1T '), and one or two R 1T ' s are a group of formula (1T ') It is more preferable that it is a group represented by
- R 1T 's are preferably electron-withdrawing groups, and 1 to 3 R 1T 's are more preferably electron-withdrawing groups, More preferably, one or two R 1T 's are electron withdrawing groups.
- the compound (T) preferably satisfies the requirements (I) and (II) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- Z 2 represents an oxygen atom or a sulfur atom.
- Z 2 is preferably an oxygen atom.
- Compound (T) is available from Aldrich, Luminescence Technology Corp. It is available from In addition, for example, International Publication No. 2007/063754, International Publication No. 2008/056746, International Publication No. 2011/02686, International Publication No. 2012/096263, Japanese Patent Publication 2009-227663, Japanese Patent Publication 2010-226663. No. 275,255, Advanced Materials (Adv. Mater), vol. 26, pp. 7931-7958, 2014.
- the first organic layer is a group consisting of a compound (T), a phosphorescent transition metal complex, a hole transporting material, a hole injecting material, an electron transporting material, an electron injecting material, a fluorescent compound and an antioxidant. And a layer containing a composition containing at least one selected from the following (hereinafter also referred to as "first composition").
- first composition a composition containing at least one selected from the following (hereinafter also referred to as "first composition”).
- the hole transport material, the hole injection material, the electron transport material, the electron injection material, and the fluorescent compound are different from the compound (T).
- Hole transport materials are classified into low molecular weight compounds and high molecular weight compounds, and are preferably high molecular weight compounds.
- the hole transport material may have a crosslinking group.
- polymer compound examples include polyvinylcarbazole and derivatives thereof; polyarylenes having an aromatic amine structure in the side chain or main chain and derivatives thereof.
- the macromolecular compound may be a compound having an electron accepting moiety bound thereto. Examples of the electron accepting moiety include fullerene, tetrafluorotetracyanoquinodimethane, tetracyanoethylene, trinitrofluorenone and the like, with preference given to fullerene.
- the compounding amount of the hole transporting material is usually 1 to 400 parts by mass, preferably 100 parts by mass, when the total of the compound (T) and the phosphorescent transition metal complex is 100 parts by mass. It is 5 to 150 parts by mass.
- the hole transport material may be used alone or in combination of two or more.
- Electron transport materials are classified into low molecular weight compounds and high molecular weight compounds.
- the electron transport material may have a crosslinking group.
- low molecular weight compound for example, metal complexes having 8-hydroxyquinoline as a ligand, oxadiazole, anthraquinodimethane, benzoquinone, naphthoquinone, anthraquinone, tetracyanoanthraquinodimethane, fluorenone, diphenyldicyanoethylene and diphenoquinone And as well as their derivatives.
- polyphenylene, polyfluorene, and these derivatives are mentioned, for example.
- the polymer compound may be doped with metal.
- the compounding amount of the electron transporting material is usually 1 to 400 parts by mass, preferably 5 with respect to 100 parts by mass of the total of the compound (T) and the phosphorescent transition metal complex. -150 parts by mass.
- the electron transporting material may be used alone or in combination of two or more.
- the hole injecting material and the electron injecting material are classified into low molecular weight compounds and high molecular weight compounds, respectively.
- the hole injecting material and the electron injecting material may have a crosslinking group.
- metal phthalocyanines such as copper phthalocyanine; Carbon; Metal oxides, such as molybdenum and tungsten; Metal fluorides, such as lithium fluoride, sodium fluoride, cesium fluoride, potassium fluoride, etc. are mentioned, for example.
- polyaniline polyaniline, polythiophene, polypyrrole, polyphenylene vinylene, polythienylene vinylene, polyquinoline and polyquinoxaline, and derivatives thereof
- conductive materials such as polymers containing an aromatic amine structure in the main chain or side chain Polymers are included.
- the compounding amount of the hole injecting material and the electron injecting material is generally 1 to 400 mass, assuming that the total of the compound (T) and the phosphorescent transition metal complex is 100 parts by mass. Part, preferably 5 to 150 parts by mass.
- Each of the electron injecting material and the hole injecting material may be used alone or in combination of two or more.
- the conductivity of the conductive polymer is preferably 1 ⁇ 10 ⁇ 5 S / cm to 1 ⁇ 10 3 S / cm.
- the conductive polymer can be doped with an appropriate amount of ions in order to bring the conductivity of the conductive polymer into such a range.
- the type of ion to be doped is an anion if it is a hole injecting material, and a cation if it is an electron injecting material.
- the anion include polystyrene sulfonate ion, alkyl benzene sulfonate ion and camphor sulfonate ion.
- the cation include lithium ion, sodium ion, potassium ion and tetrabutyl ammonium ion.
- the ions to be doped may be used singly or in combination of two or more.
- Fluorescent compounds are classified into low molecular weight compounds and high molecular weight compounds.
- the fluorescent compound may have a crosslinking group.
- low molecular weight compounds examples include naphthalene and its derivatives, anthracene and its derivatives, and perylene and its derivatives.
- Examples of the polymer compound include a phenylene group, a naphthalenediyl group, an anthracenediyl group, a fluorenediyl group, a phenanthrenediyl group, a dihydrophenanthrendiyl group, a group represented by Formula (X) described later, a carbazole diyl group, The high molecular compound containing a sadindiyl group, phenothiazine diyl group, pyrene diyl group etc. is mentioned.
- the compounding amount of the fluorescent compound is usually 0.1 to 400 parts by mass, preferably 100 parts by mass, based on 100 parts by mass of the total of the compound (T) and the phosphorescent transition metal complex. It is 5 to 150 parts by mass.
- the fluorescent compound may be used alone or in combination of two or more.
- the antioxidant may be a compound which is soluble in the same solvent as the compound (T) and the phosphorescent transition metal complex and does not inhibit light emission and charge transport, and examples thereof include phenolic antioxidants, phosphorus antioxidants Agents.
- the blending amount of the antioxidant is usually 0.001 to 10 parts by mass, based on 100 parts by mass of the total of the compound (T) and the phosphorescent transition metal complex.
- the antioxidant may be used alone or in combination of two or more.
- a composition containing the compound (T), a phosphorescent transition metal complex, and a solvent is a spin coat method, a casting method, a microgravure coat method, a gravure coat Method, bar coating method, roll coating method, wire bar coating method, dip coating method, spray coating method, screen printing method, flexographic printing method, offset printing method, ink jet printing method, capillary coating method, nozzle coating method, etc. It can be suitably used in the law.
- the viscosity of the first ink may be adjusted according to the type of application method, but when a solution such as inkjet printing method is applied to a printing method via an ejection device, clogging and flight bending occur during ejection. Since it is not easy, it is preferably 1 to 20 mPa ⁇ s at 25 ° C.
- the solvent contained in the first ink is preferably a solvent that can dissolve or uniformly disperse the solid content in the ink.
- the solvent for example, chlorinated solvents such as 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene, o-dichlorobenzene, etc .; ether solvents such as tetrahydrofuran, dioxane, anisole, 4-methylanisole; toluene, Aromatic hydrocarbon solvents such as xylene, mesitylene, ethylbenzene, n-hexylbenzene, cyclohexylbenzene; cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n-octane, n-nonane, n- Aliphatic hydrocarbon solvents such as decane, n-dodecane and
- the compounding amount of the solvent is usually 1000 to 100000 parts by mass, preferably 2000 to 20000 parts by mass, when the total of the compound (T) and the phosphorescent transition metal complex is 100 parts by mass. It is a department.
- the second organic layer is a layer containing a crosslinked body of a polymer compound containing a structural unit having a crosslinking group (hereinafter also referred to as “polymer compound of second organic layer”).
- the crosslinked product of the polymer compound of the second organic layer can be obtained by bringing the polymer compound of the second organic layer into a crosslinked state by the method, conditions, and the like described above.
- the energy level of the lowest triplet excited state of the polymer compound of the second organic layer is preferably 2.34 eV or more, more preferably 2.36 eV, because the external quantum efficiency of the light emitting element of the present invention is more excellent. It is above. Since the external quantum efficiency of the light emitting device of the present invention is more excellent and the stability of the polymer compound of the second organic layer is excellent, the energy level of the lowest triplet excited state of the polymer compound of the second organic layer Is preferably 2.30 eV or more and 4.00 eV or less, more preferably 2.34 eV or more and 3.00 eV or less, and still more preferably 2.36 eV or more and 2.70 eV or less.
- the energy level of the lowest triplet excited state of the polymer compound is a film made of the polymer compound, a phosphorescence spectrum at 77 K of this film is measured, and the maximum peak of the shortest wavelength in the phosphorescence spectrum obtained The wavelength can be determined by converting it into energy.
- the thickness of the film is usually 10 nm to 1 ⁇ m.
- the film may be formed by, for example, coating methods such as spin coating and drop casting, and is preferably drop casting.
- the magnitude relationship between the energy levels of the lowest triplet excited states of the polymer compounds can be compared by computational scientific methods. Specifically, the energy level of the lowest triplet excited state of each polymer compound is calculated by a computational scientific method, and the magnitude relationship can be compared from the obtained calculation result.
- computational science using Gaussian09 as the quantum chemistry program, the structure functional of the monomer unit dimer is optimized by B3LYP level density functional theory, where 6-31 G is used as the basis function. Use *.
- the energy level of the lowest triplet excited state of the polymer compound is calculated by the time-dependent density functional method at the B3LYP level.
- 6-31G * includes an unusable atom
- LANL2DZ is used for this atom.
- the lowest excitation triplet energy is calculated for the dimer of the monomer unit, and the lowest excitation triplet energy of the polymer compound is calculated.
- the lowest excitation triplet energy is calculated for all dimers that can be generated upon polymerization of the monomer units contained at 1% or more in molar ratio, and the minimum value among them Is the lowest excited triplet energy of the polymer compound.
- the polymer compound of the second organic layer is a polymer compound containing a constitutional unit having at least one type of crosslinking group selected from the group of crosslinking groups A, because the external quantum efficiency of the light emitting device of the present invention is more excellent. Is preferred.
- crosslinking group selected from the crosslinking group A group since the external quantum efficiency of the light emitting device of the present invention is more excellent, preferably, Formula (XL-1) to Formula (XL-4), and Formula (XL-7) to A crosslinking group represented by Formula (XL-10) or Formula (XL-16) to Formula (XL-19), and more preferably, Formula (XL-1), Formula (XL-3), Formula (XL) -9) a crosslinking group represented by the formula (XL-10), the formula (XL-16) or the formula (XL-17) to the formula (XL-19), more preferably the formula (XL-1) , A crosslinking group represented by the formula (XL-16) or the formula (XL-17) to the formula (XL-19), and particularly preferably a bridging group represented by the formula (XL-1) or the formula (XL-17) Cross-linking group.
- the structural unit having at least one crosslinking group selected from the crosslinking group A, which is contained in the polymer compound of the second organic layer, is represented by the structural unit represented by the formula (2) or the formula (2 ′) It is preferable that the structural unit is a structural unit, but it may be a structural unit represented below.
- the polymer compound of the second organic layer contains two or more structural units having at least one crosslinking group selected from the crosslinking group A group, it has at least one crosslinking group selected from the crosslinking group A group It is preferred that at least two of the constituent units have mutually different crosslinking groups.
- Examples of combinations of crosslinking groups which are different from one another include formula (XL-1), formula (XL-2), formula (XL-5) to formula (XL-8) or formula (XL-14) to formula (XL-16) And a crosslinking group represented by Formula (XL-3), Formula (XL-4), Formula (XL-13) or Formula (XL-17) to Formula (XL-19)
- a combination is preferable, and a combination of a crosslinking group represented by Formula (XL-1) or Formula (XL-16) and a crosslinking group represented by Formula (XL-17) to Formula (XL-19) is more preferable. Further preferred is a combination of a crosslinking group represented by the formula (XL-1) and a crosslinking group represented by the formula (XL-17).
- the structural unit nA represented by the formula (2) is preferably an integer of 0 to 3, more preferably an integer of 0 to 2, since the external quantum efficiency of the light emitting device of the present invention is more excellent. Preferably it is 1.
- N is preferably 2, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- Ar 3 is preferably an aromatic hydrocarbon group which may have a substituent, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the number of carbon atoms of the aromatic hydrocarbon group represented by Ar 3 is usually 6 to 60, preferably 6 to 30, and more preferably 6 to 18, not including the number of carbon atoms of the substituent. is there.
- Examples and preferred ranges of the arylene group moiety obtained by removing n substituent for the aromatic hydrocarbon group represented by Ar 3 are the same as examples and preferred ranges of the arylene group represented by later-described Ar Y1.
- the carbon atom number of the heterocyclic group represented by Ar 3 is usually 2 to 60, preferably 3 to 30, and more preferably 4 to 18, not including the carbon atom number of the substituent.
- Examples and preferred ranges of the divalent heterocyclic group moiety excluding the n substituents of the heterocyclic group represented by Ar 3 are the examples and preferred examples of the divalent heterocyclic group represented by Ar Y 1 described later It is the same as the range.
- Examples and preferred ranges of the substituent which may be possessed represented by Ar 3 are the same as examples and preferred ranges of the substituent which may be possessed by the groups represented by later-described Ar Y1.
- the example and the preferable range of the substituent which the substituent which the group represented by Ar 3 may have may further have may be the substituent which the group represented by Ar Y 1 described later may have The same as the examples and the preferred ranges of the substituents which may further be possessed.
- L A number of carbon atoms of the alkylene group represented by the not including the carbon atom number of substituent is usually 1 to 20, preferably 1 to 15, more preferably 1 to 10.
- the number of carbon atoms a cycloalkylene group represented by L A is not including the carbon atom number of substituent is usually 3 to 20.
- Alkylene group and cycloalkylene group represented by L A may have a substituent, for example, methylene group, ethylene group, propylene group, butylene group, hexylene group, a cyclohexylene group, octylene group and, Groups in which a hydrogen atom in these groups is substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, a monovalent heterocyclic group, a fluorine atom or the like can be mentioned.
- a substituent for example, methylene group, ethylene group, propylene group, butylene group, hexylene group, a cyclohexylene group, octylene group and, Groups in which a hydrogen atom in these groups is substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an
- arylene group represented by L A is preferably a phenylene group or a fluorenediyl group, and more preferably, m- phenylene group, p- phenylene, 2,7-diyl group, fluorene-9, It is a 9-diyl group, and these groups may further have a substituent.
- Examples and preferred ranges of the divalent heterocyclic group represented by L A are the same as examples and preferred ranges of the divalent heterocyclic group represented by later-described Ar Y1
- L A is preferably an arylene group or an alkylene group, and more preferably a phenylene group, a fluorenicyl group or an alkylene group, since L A facilitates the production of the polymer compound of the second organic layer, and further preferably Preferably, it is an alkylene group, and these groups may have a substituent.
- the example and the preferable range of the substituent which the group represented by L A may further have may have the substituent which the group represented by Ar Y 1 described later may have The same as the examples and the preferred ranges of the substituents which may further be possessed.
- X is preferably represented by Formula (XL-1) to Formula (XL-4), Formula (XL-7) to Formula (XL-10), or XL-16) to the crosslinking group represented by the formula (XL-19), and more preferably, the formula (XL-1), the formula (XL-3), the formula (XL-9), the formula (XL-10) A cross-linking group represented by formula (XL-16) or formula (XL-17) to formula (XL-19), and more preferably a formula (XL-1), a formula (XL-16) or a formula It is a crosslinking group represented by (XL-17) to formula (XL-19), and particularly preferably a crosslinking group represented by formula (XL-1) or formula (XL-17).
- the structural unit represented by the formula (2) is excellent in the stability and the crosslinkability of the polymer compound of the second organic layer, and therefore relative to the total amount of the structural units contained in the polymer compound of the second organic layer. Preferably, it is 0.5 to 80 mol%, more preferably 3 to 65 mol%, and still more preferably 5 to 50 mol%.
- the constituent unit represented by the formula (2) may be contained singly or in combination of two or more in the polymer compound of the second organic layer.
- the polymer compound of the second organic layer contains two or more structural units represented by the formula (2)
- at least two of the structural units represented by the formula (2) are cross-linked represented by X
- the groups are different from one another.
- the preferred range of the combination of crosslinking groups represented by different X's is the same as the preferred range of the aforementioned combination of different crosslinking groups.
- the structural unit mA represented by the formula (2 ′) is preferably an integer of 0 to 3, more preferably an integer of 0 to 2, since the external quantum efficiency of the light emitting device of the present invention is more excellent. More preferably, it is 0 or 1, and particularly preferably 0.
- M is preferably 1 or 2, and more preferably 2, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- C is preferably 0, because the polymer compound of the second organic layer can be easily produced and the external quantum efficiency of the light emitting device of the present invention is more excellent.
- Ar 5 is preferably an aromatic hydrocarbon group which may have a substituent, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the definition and examples of the divalent heterocyclic group moiety excluding the m substituents of the heterocyclic group represented by Ar 5 are the divalent heterocyclic group represented by Ar X2 in the formula (X) described later The same as the definition and example of the part.
- the definition and examples of the divalent group excluding the m substituents of the group in which at least one aromatic hydrocarbon ring represented by Ar 5 and at least one hetero ring are directly bonded are represented by the formula (described later) It is the same as the definition and example of a divalent group in which at least one arylene group represented by Ar X2 in X) and at least one divalent heterocyclic group are directly bonded.
- Ar 4 and Ar 6 are preferably arylene groups which may have a substituent, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the definitions and examples of the arylene group represented by Ar 4 and Ar 6 are the same as the definitions and examples of the arylene group represented by Ar X1 and Ar X3 in Formula (X) described later.
- divalent heterocyclic groups represented by Ar 4 and Ar 6 are the same as the definitions and examples of divalent heterocyclic groups represented by Ar X1 and Ar X3 in Formula (X) described later. is there.
- Examples and preferred ranges of the substituents which may be possessed by the group represented by Ar 4 , Ar 5 and Ar 6 are the examples and preferred substituents which may be possessed by the group represented by Ar Y 1 described later. It is the same as the range.
- the example and the preferable range of the substituent which the group represented by Ar 4 , Ar 5 and Ar 6 may further have may have a group represented by Ar Y 1 described later The same applies to the examples and the preferred ranges of the substituents which may be further substituted.
- alkylene group, cycloalkylene group, arylene group and divalent heterocyclic group represented by K A are respectively the alkylene group, cycloalkylene group, arylene group and divalent hetero group represented by L A The same as the definition and examples of the ring group.
- K A is preferably an arylene group or an alkylene group, and more preferably a phenylene group, a fluorenedyl group or an alkylene group, since K A facilitates the production of the polymer compound of the second organic layer, and further preferably It is preferably a phenylene group or a methylene group, and these groups may have a substituent.
- Examples and preferred ranges of the substituent which may be possessed by the groups represented by K A is the same as the example and preferred ranges of the substituents may have the group represented by L A.
- the example and the preferable range of the substituent which the group represented by K A may further have may further have a substituent which the group represented by Ar Y 1 may have.
- Examples and preferred ranges of the substituents which may be substituted are the same.
- the structural unit represented by the formula (2 ′) is excellent in the stability of the polymer compound of the second organic layer, and the crosslinkability of the polymer compound of the second organic layer is excellent.
- the amount is preferably 0.5 to 50% by mole, more preferably 3 to 30% by mole, and still more preferably 5 to 20% by mole, based on the total amount of the constituent units contained in the polymer compound of the layer.
- the constituent unit represented by the formula (2 ′) may be contained singly or in combination of two or more types in the polymer compound of the second organic layer.
- the polymer compound of the second organic layer contains two or more structural units represented by the formula (2 ′), at least two of the structural units represented by the formula (2 ′) are represented by X ′
- the crosslinking groups used are different from one another.
- the preferred range of the combination of crosslinking groups represented by different X's is the same as the preferred range of the combination of different crosslinking groups described above.
- the structural unit represented by the formula (2) is represented by, for example, the formulas (2-1) to (2-30)
- Structural units represented by formula (2 ′) include, for example, structural units represented by formulas (2′-1) to (2′-9).
- the structural units represented by formulas (2-1) to (2-30) are preferable, and more preferably formula (2) -1) to the formula (2-15), the formula (2-19), the formula (2-20), the formula (2-23), the formula (2-25) or the formula (2-30) It is a unit, more preferably a structural unit represented by Formula (2-1) to Formula (2-9) or Formula (2-30).
- the polymer compound of the second organic layer preferably further includes a structural unit represented by the formula (Y) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the polymer compound of the second organic layer preferably has a structural unit represented by the formula (X) since it has excellent hole transportability.
- the polymer compound of the second organic layer is excellent in the hole transportability and further excellent in the external quantum efficiency of the light emitting device of the present invention, so that the structural unit represented by the formula (X) and the formula (Y It is preferable to include the structural unit represented by).
- Ar Y 1 represents an arylene group, a divalent heterocyclic group, or a divalent group in which at least one arylene group and at least one type of divalent heterocyclic group are directly bonded, Groups may have a substituent.
- the arylene group represented by Ar Y1 is preferably selected from Formula (A-1) to Formula (1-10), Formula (A-19), or Formula (A-19) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- A-20) A group represented by A-20), more preferably, Formula (A-1) to Formula (A-3), Formula (A-6) -Formula (A-10), Formula (A-19) Or a group represented by the formula (A-20), more preferably, the formula (A-1), the formula (A-2), the formula (A-7), the formula (A-9) or the formula (A) It is a group represented by -19).
- the divalent heterocyclic group represented by Ar Y1 is preferably represented by the formula (AA-1) -the formula (AA-4) or the formula (AA-10) because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the ranges are respectively the same as the more preferable range and the further preferable range of the arylene group and the divalent heterocyclic group represented by Ar Y1 described above.
- Examples of “a divalent group in which at least one arylene group and at least one divalent heterocyclic group are directly bonded” include groups represented by the following formulas, and these groups have a substituent It may be done.
- R XX represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- R XX is preferably an alkyl group, a cycloalkyl group or an aryl group, and these groups may have a substituent.
- the substituent which the group represented by Ar Y1 may have is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, a monovalent heterocyclic group, a substituted amino group, a fluorine atom Or a cyano group, more preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, a monovalent heterocyclic group or a substituted amino group, still more preferably an alkyl group, a cycloalkyl group An aryl group or a monovalent heterocyclic group, particularly preferably an alkyl group, a cycloalkyl group or an aryl group, and these groups may further have a substituent.
- the substituent which the group represented by Ar Y1 may further have is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent group.
- a heterocyclic group a substituted amino group, a fluorine atom or a cyano group, more preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, still more preferably an alkyl group or a cycloalkyl group
- these groups may further have a substituent.
- the arylene group represented by Ar Y1 is preferable because the external quantum efficiency of the light emitting device of the present invention is more excellent, and the energy level of the lowest triplet excited state of the polymer compound of the second organic layer is increased.
- the divalent group represented by Ar Y1 in which at least one arylene group and at least one divalent heterocyclic group are directly bonded is more excellent in the external quantum efficiency of the light emitting device of the present invention, and Since the electron transporting property of the polymer compound of the second organic layer is excellent, a group represented by any one of formulas (Y-4) to (Y-7) is preferable.
- the divalent heterocyclic group represented by Ar Y1 is preferably a compound represented by the formula because the external quantum efficiency of the light emitting device of the present invention is more excellent and the hole transportability of the polymer compound of the second organic layer is excellent. It is a group represented by any of (Y-8) to formula (Y-10), more preferably a group represented by formula (Y-10).
- n Y1 represents an integer of 1 or more and 4 or less.
- R Y11 represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- R Y11 When a plurality of R Y11 is present, they may be the same or different, and adjacent R Y11 may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- n Y1 is preferably 1 or 2, and more preferably 2.
- R Y11 is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an alkyl group, a cycloalkyl group or an aryl group, still more preferably an alkyl group or cyclo It is an alkyl group, particularly preferably an alkyl group, and these groups may have a substituent.
- R Y11 When a plurality of R Y11 is present, it is preferable that adjacent R Y11 be not bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- the example and the preferred range of the substituent which may be possessed by R Y11 are the same as the example and the preferred range of the substituent which the substituent which may be possessed by the group represented by Ar Y1 may further have It is.
- the group represented by Formula (Y-1) is preferably a group represented by Formula (Y-1-1) to Formula (Y-1-4), and more preferably a group represented by Formula (Y-1-1) Or a group represented by the formula (Y-1-2), more preferably a group represented by the formula (Y-1-1).
- R Y11 has the same meaning as described above.
- R Y1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- Plural R Y1 may be the same or different, and adjacent R Y1 may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- Adjacent R Y1 and R Y11 may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- R Y1 is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, still more preferably Is a hydrogen atom, an alkyl group or a cycloalkyl group, particularly preferably a hydrogen atom or an alkyl group, and these groups may have a substituent.
- the example and the preferred range of the substituent which may be possessed by R Y1 are the same as the example and the preferred range of the substituent which the substituent which may be possessed by the group represented by Ar Y1 may further have It is.
- Adjacent R Y1s are preferably bonded to each other so as not to form a ring together with the carbon atoms to which they are bonded.
- Adjacent R Y1 and R Y11 are preferably bonded to each other and do not form a ring together with the carbon atoms to which they are bonded.
- n Y2 represents an integer of 1 or more and 6 or less.
- R Y11 has the same meaning as described above.
- R Y2 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- a plurality of R Y2 may be the same or different, and R Y2 may be bonded to each other to form a ring together with the carbon atoms to which they are bonded. ]
- n Y2 is preferably an integer of 1 or more and 4 or less, more preferably 1 or 2, and further preferably 2.
- R Y2 is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an alkyl group, a cycloalkyl group or an aryl group, and these groups have a substituent It may be done.
- the example and the preferred range of the substituent which may be possessed by R Y2 are the same as the example and the preferred range of the substituent which the substituent which may be possessed by the group represented by Ar Y1 may further have It is.
- the combination of two R Y2 in the group represented by —C (R Y2 ) 2 — is preferably both an alkyl group or a cycloalkyl group, both an aryl group, and both of which are monovalent A ring group, or one of them is an alkyl group or a cycloalkyl group and the other is an aryl group or a monovalent heterocyclic group, more preferably one is an alkyl group or a cycloalkyl group and the other is an aryl group, these groups May have a substituent.
- R Y2 's may be bonded to each other to form a ring together with the atoms to which each is attached, and when R Y2 forms a ring, a group represented by —C (R Y2 ) 2 — Is preferably a group represented by formula (Y-A1) -formula (Y-A5), more preferably a group represented by formula (Y-A4), and these groups have a substituent It may be done.
- R Y2 in the group represented by —C (R Y2 ) 2 —C (R Y2 ) 2 — in X Y1 is an alkyl group or a cycloalkyl group which may have a substituent. It is.
- R Y2 may be bonded to each other to form a ring with the atoms to which each is attached, and in the case where R Y2 forms a ring, -C (R Y2 ) 2 -C (R Y2 ) 2-
- the group represented is preferably a group represented by the formula (Y-B1)-(Y-B5), more preferably a group represented by the formula (Y-B3), and these groups are substituted It may have a group.
- R Y2 represents the same meaning as described above.
- the group represented by the formula (Y-2) is preferably a group represented by the formulas (Y-2-1) to (Y-2-4), and more preferably the formula (Y-2-1) Or a group represented by formula (Y-2-2).
- R Y1 represents the same meaning as described above.
- R Y3 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- R Y3 is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group or a monovalent heterocyclic group, still more preferably an aryl group, The group may have a substituent.
- R Y3 The example and the preferred range of the substituent which may be possessed by R Y3 are the same as the examples and the preferred range of the substituent which the substituent which the group represented by Ar Y1 may optionally have may have. It is.
- the group represented by the formula (Y-4) is preferably a group represented by the formula (Y-4 ′).
- the group represented by the formula (Y-6) is preferably a group represented by the formula (Y-6 ′).
- R Y1 has the same meaning as the above.
- R Y4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- R Y4 is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group or a monovalent heterocyclic group, still more preferably an aryl group, The group may have a substituent.
- R Y4 The example and the preferred range of the substituent which may be possessed by R Y4 are the same as the examples and the preferred range of the substituent which the substituent which the group represented by Ar Y1 may optionally have may have. It is.
- the polymer compound in the second organic layer has a higher energy level in the lowest triplet excited state, and therefore, the polymer of the formula (Y-1), the formula (Y-2) or the formula (Y-8) to the formula (Y) It is preferable to include a group represented by -10), more preferably to include a group represented by Formula (Y-1), Formula (Y-2) or Formula (Y-10), Formula (Y-) It is further preferable to include the group represented by 1) or the formula (Y-10), and it is particularly preferable to include the group represented by the formula (Y-1).
- constitutional unit represented by the formula (Y) for example, a constitutional unit comprising an arylene group represented by the formula (Y-101) -formula (Y-121), a formula (Y-201) -formula (Y-) Constituent unit comprising a divalent heterocyclic group represented by 206), at least one arylene group represented by the formula (Y-300) -formula (Y-304) and at least one divalent heterocyclic ring
- bonded is mentioned.
- the external quantum efficiency of the light emitting device of the present invention is more excellent Therefore, it is preferably 0.5 to 90 mol%, more preferably 30 to 60 mol%, with respect to the total amount of structural units contained in the polymer compound of the second organic layer.
- the polymer compound of the second organic layer contains a constitutional unit represented by the formula (Y), and Ar Y1 is a divalent heterocyclic group, or at least one type of arylene group and at least one type of divalent
- Ar Y1 is a divalent heterocyclic group, or at least one type of arylene group and at least one type of divalent
- it is included in the polymer compound of the second organic layer because the charge transportability of the polymer compound of the second organic layer is excellent.
- the amount is preferably 0.1 to 90 mol%, more preferably 1 to 70 mol%, and still more preferably 10 to 50 mol%, based on the total amount of the constituent units.
- the structural unit represented by the formula (Y) may be contained singly or in combination of two or more in the polymer compound of the second organic layer.
- Each of a X1 and a X2 independently represents an integer of 0 or more.
- Ar X1 and Ar X3 each independently represent an arylene group or a divalent heterocyclic group, and these groups may have a substituent.
- Ar X2 and Ar X4 are each independently an arylene group, a divalent heterocyclic group, or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are directly bonded These groups may have a substituent.
- Ar X2 and Ar X4 When a plurality of Ar X2 and Ar X4 exist, they may be the same or different.
- R X1 , R X2 and R X3 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent.
- R X2 and R X3 may be the same or different.
- a X1 is preferably 2 or less, more preferably 0 or 1, and still more preferably 0, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- a X2 is preferably 2 or less, more preferably 0 or 1, and still more preferably 0, because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- R X1 , R X2 and R X3 are preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group or a monovalent heterocyclic group, still more preferably an aryl group These groups may have a substituent.
- Examples and preferred ranges of the arylene group and divalent heterocyclic group represented by Ar X1 , Ar X2 , Ar X3 and Ar X4 are examples of the arylene group and divalent heterocyclic group represented by Ar Y1 , respectively. And the same as the preferred range.
- Examples and preferred examples of an arylene group and a divalent heterocyclic group in a divalent group in which at least one arylene group represented by Ar X2 and Ar X4 and at least one divalent heterocyclic group are directly bonded The ranges are the same as the examples and the preferred ranges of the arylene group and divalent heterocyclic group represented by Ar Y 1 , respectively.
- Examples of the divalent group in which at least one arylene group represented by Ar X2 and Ar X4 and at least one divalent heterocyclic group are directly bonded to each other include at least one represented by Ar Y1 of the formula (Y)
- the same groups as the divalent group in which one kind of arylene group and at least one kind of divalent heterocyclic group are directly bonded to each other can be mentioned.
- Ar X1 , Ar X2 , Ar X3 and Ar X4 are preferably arylene groups which may have a substituent.
- Ar X1 and Ar X3 is preferably represented by Formula (Y-1) or Formula (Y) -2), more preferably a group represented by formula (Y-1), still more preferably a group represented by formula (Y-1-1) or formula (Y-1-2) And particularly preferably a group represented by formula (Y-1-2).
- Ar X1 and Ar X3 are preferably selected from the group consisting of the higher external quantum efficiency of the light emitting device of the present invention and the higher energy level of the lowest triplet excited state of the polymer compound of the second organic layer. It is a group represented by the formula (Y-1) or the formula (Y-2), more preferably a group represented by the formula (Y-1), still more preferably the formula (Y-1-1) Or a group represented by formula (Y-1-2), particularly preferably a group represented by formula (Y-1-2).
- Examples and preferred ranges of the substituent which the group represented by Ar X1 to Ar X4 and R X1 to R X3 may have are the examples of the substituent which the group represented by Ar Y1 may have and the preferable range It is the same as the range.
- Examples and preferred ranges of the substituent which the group represented by Ar X 1 to Ar X 4 and R X 1 to R X 3 may further have may be the group represented by Ar Y 1 It is the same as the example and the preferable range of the substituent which the substituent which may have may further have.
- the constitutional unit represented by the formula (X) is preferably a constitutional unit represented by the formula (X-1) -formula (X-7), more preferably a formula (X-1) -formula (X-) It is a structural unit represented by 6).
- R X4 and R X5 are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryloxy group, halogen atom, monovalent heterocyclic group or cyano Represents a group, and these groups may have a substituent.
- a plurality of R X4 may be the same or different.
- Plural R X5 s may be the same or different, and adjacent R X5 s may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- R X4 is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and more preferably a hydrogen atom, an alkyl group, a cycloalkyl group, It is an aryl group or a monovalent heterocyclic group, more preferably a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, particularly preferably a hydrogen atom or an alkyl group, and these groups are further substituted May be included.
- R X5 is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and more preferably a hydrogen atom, an alkyl group, a cycloalkyl group, It is an aryl group or a monovalent heterocyclic group, more preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, particularly preferably an alkyl group or an aryl group, and these groups May further have a substituent.
- the example and the preferable range of the substituent which the group represented by R X4 and R X5 may have are the substituent which the substituent which the group represented by Ar Y1 may have may further have. And the preferred range.
- the constitutional unit represented by the formula (X) is excellent in the hole transportability, and thus the second organic layer
- the amount is preferably 0.1 to 90 mol%, more preferably 1 to 70 mol%, and still more preferably 10 to 50 mol%, based on the total amount of the structural units contained in the polymer compound.
- Examples of the structural unit represented by the formula (X) include structural units represented by the formula (X1-1) -formula (X1-15).
- the constituent unit represented by the formula (X) may be contained singly or in combination of two or more.
- Examples of the polymer compound of the second organic layer include polymer compounds P-1 to P-8.
- the “other structural unit” means a structural unit other than the structural units represented by Formula (2), Formula (2 ′), Formula (X), and Formula (Y).
- p ′, q ′, r ′, s ′ and t ′ each represent a molar ratio of each constituent unit.
- p ′ + q ′ + r ′ + s ′ + t ′ 100 and 70 ⁇ p ′ + q ′ + r ′ + s ′ ⁇ 100.
- the polymer compound of the second organic layer may be any of a block copolymer, a random copolymer, an alternating copolymer, a graft copolymer, and may be other embodiments, but plural It is preferable that it is a copolymer which copolymerized the raw material monomer of seed
- the polystyrene equivalent number average molecular weight of the polymer compound of the second organic layer is preferably 5 ⁇ 10 3 to 1 ⁇ 10 6 , more preferably 1 ⁇ 10 4 to 5 ⁇ 10 5 , and more preferably It is 1.5 ⁇ 10 4 to 1 ⁇ 10 5 .
- the polymer compound of the second organic layer can be produced using a known polymerization method described in Chemical Review (Chem. Rev.), Vol. 109, p. 897-1091 (2009), etc. Examples thereof include a method of polymerization by a coupling reaction using a transition metal catalyst such as a reaction, Yamamoto reaction, Buchwald reaction, Stille reaction, Negishi reaction and Kumada reaction.
- transition metal catalysts examples include palladium catalysts and nickel catalysts.
- Post-treatment of the polymerization reaction is carried out by a known method, for example, a method of removing water-soluble impurities by liquid separation, adding a reaction solution after the polymerization reaction to a lower alcohol such as methanol, filtering the deposited precipitate and drying it.
- the method to make it etc. is performed alone or in combination.
- purification can be performed by a usual method such as recrystallization, reprecipitation, continuous extraction with a Soxhlet extractor, column chromatography and the like.
- the second organic layer is selected from the group consisting of a crosslinked product of the polymer compound of the second organic layer, a hole transporting material, a hole injecting material, an electron transporting material, an electron injecting material, a light emitting material and an antioxidant. It may be a layer containing a composition containing at least one material (hereinafter also referred to as “second composition”).
- Examples and preferred ranges of the hole transporting material, the electron transporting material, the hole injecting material and the electron injecting material contained in the second composition are the hole transporting material and the electron transporting material contained in the first composition. , The same as the examples and preferred ranges of the hole injection material and the electron injection material.
- the light emitting material contained in the second composition for example, a fluorescent compound which may be contained in the first composition, and a phosphorescent metal complex having iridium, platinum or europium as a central metal Can be mentioned.
- the light emitting materials may be used alone or in combination of two or more.
- the compounding amounts of the hole transporting material, the electron transporting material, the hole injecting material, the electron injecting material and the light emitting material are each 100 parts by mass of the crosslinked product of the polymer compound of the second organic layer In the above, the amount is usually 1 to 400 parts by mass, preferably 5 to 150 parts by mass.
- the example and the preferable range of the antioxidant contained in a 2nd composition are the same as the example and a preferable range of the antioxidant contained in a 1st composition.
- the blending amount of the antioxidant is usually 0.001 to 10 parts by mass, based on 100 parts by mass of the crosslinked product of the polymer compound of the second organic layer.
- a composition containing the polymer compound of the second organic layer and a solvent (hereinafter also referred to as “second ink”) is suitably used in the wet method described in the section of the first ink.
- second ink a solvent
- the preferred range of the viscosity of the second ink is the same as the preferred range of the viscosity of the first ink.
- Examples and preferred ranges of the solvent contained in the second ink are the same as examples and preferred ranges of the solvent contained in the first ink.
- the compounding amount of the solvent is usually 1000 to 100000 parts by mass, preferably 2000 to 20000 parts by mass, based on 100 parts by mass of the polymer compound of the second organic layer.
- the light emitting device of the present invention may have a layer other than the anode, the cathode, the first organic layer, and the second organic layer.
- the first organic layer is usually a light emitting layer (hereinafter, referred to as “first light emitting layer”).
- the second organic layer is usually a hole transporting layer, a second light emitting layer or an electron transporting layer, preferably a hole transporting layer or a second light emitting layer, more preferably Is a hole transport layer.
- the first organic layer and the second organic layer are preferably adjacent to each other because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the second organic layer is preferably a layer provided between the anode and the first organic layer, because the external quantum efficiency of the light emitting device of the present invention is more excellent. More preferably, it is a hole transporting layer or a second light emitting layer provided between the first organic layer, and it is further preferred that it is a hole transporting layer provided between the anode and the first organic layer. preferable.
- the compound (T) and the phosphorescent transition metal complex may be contained singly or in combination of two or more.
- the crosslinked product of the polymer compound of the second organic layer may be contained singly or in combination of two or more.
- the second organic layer is a hole transport layer provided between the anode and the first organic layer
- the external quantum efficiency of the light emitting device of the present invention is more excellent. It is preferable to further have a hole injection layer between the second organic layer.
- the second organic layer is a hole transport layer provided between the anode and the first organic layer
- the external quantum efficiency of the light emitting device of the present invention is more excellent. It is preferable to further include at least one of the electron injection layer and the electron transport layer in between.
- the second organic layer when the second organic layer is the second light emitting layer provided between the anode and the first organic layer, the external quantum efficiency of the light emitting device of the present invention is more excellent. It is preferable to further include at least one layer of a hole injection layer and a hole transport layer between the and the second organic layer. When the second organic layer is the second light emitting layer provided between the anode and the first organic layer, the external quantum efficiency of the light emitting device of the present invention is more excellent. Preferably, at least one of the electron injection layer and the electron transport layer is further included.
- the second organic layer when the second organic layer is the second light emitting layer provided between the cathode and the first organic layer, the external quantum efficiency of the light emitting device of the present invention is more excellent. It is preferable to further include at least one layer of a hole injection layer and a hole transport layer between the and the first organic layer. When the second organic layer is the second light emitting layer provided between the cathode and the first organic layer, the external quantum efficiency of the light emitting device of the present invention is more excellent. Preferably, at least one of the electron injection layer and the electron transport layer is further included.
- the second organic layer is an electron transporting layer provided between the cathode and the first organic layer
- the external quantum efficiency of the light emitting device of the present invention is more excellent. It is preferable to further have at least one layer of a hole injection layer and a hole transport layer between one organic layer.
- the second organic layer is an electron transport layer provided between the cathode and the first organic layer
- the external quantum efficiency of the light emitting device of the present invention is more excellent, so that it is between the cathode and the second organic layer. It is preferable to further include an electron injection layer.
- the layer configuration of the light emitting device of the present invention include the layer configurations represented by (D1) to (D15).
- the light emitting device of the present invention generally has a substrate, but may be laminated from the anode on the substrate or may be laminated from the cathode on the substrate.
- “/” means that the layers before and after that are stacked adjacent to each other.
- “second light emitting layer (second organic layer) / first light emitting layer (first organic layer)” refers to the second light emitting layer (second organic layer) and the first light emitting layer It means that the light emitting layer (first organic layer) is stacked adjacent to one another.
- the layer configuration represented by (D3) to (D12) is preferable, and the layer configuration represented by (D7) to (D10) is more preferable because the external quantum efficiency of the light emitting device of the present invention is more excellent.
- the anode, the hole injection layer, the hole transport layer, the second light emitting layer, the electron transport layer, the electron injection layer and the cathode are each provided in two or more layers as necessary. It is also good.
- a plurality of anodes, hole injection layers, hole transport layers, second light emitting layers, electron transport layers, electron injection layers and cathodes are present, they may be the same or different.
- the thicknesses of the anode, the hole injection layer, the hole transport layer, the first light emitting layer, the second light emitting layer, the electron transport layer, the electron injection layer and the cathode are usually 1 nm to 1 ⁇ m, preferably 2 nm to It is 500 nm, more preferably 5 nm to 150 nm.
- the order, the number, and the thickness of the layers to be stacked may be adjusted in consideration of the light emission efficiency, the driving voltage and the element life of the light emitting element.
- the second light emitting layer is usually a second organic layer or a layer containing a light emitting material, preferably a layer containing a light emitting material.
- the second light emitting layer is a layer containing a light emitting material
- examples of the light emitting material contained in the second light emitting layer include a light emitting material which may be contained in the above-mentioned second composition.
- the light emitting materials contained in the second light emitting layer may be contained singly or in combination of two or more.
- the second light emitting layer is the second organic layer Is preferred.
- the hole transport layer is usually a second organic layer or a layer containing a hole transport material, preferably a second organic layer.
- the hole transport layer is a layer containing a hole transport material
- examples of the hole transport material include a hole transport material which may be contained in the first composition described above.
- the hole transport material contained in the hole transport layer may be contained singly or in combination of two or more.
- the hole transporting layer is the second organic layer. Is preferred.
- the electron transport layer is usually a second organic layer or a layer containing an electron transport material, preferably a layer containing an electron transport material.
- the electron transport layer is a layer containing an electron transport material
- examples of the electron transport material contained in the electron transport layer include an electron transport material which may be contained in the above-mentioned first composition. .
- the electron transporting material contained in the electron transporting layer may be contained singly or in combination of two or more.
- the electron transporting layer is the second organic layer Is preferred.
- the hole injection layer is a layer containing a hole injection material.
- a hole injection material contained in a hole injection layer the hole injection material which the above-mentioned 1st composition may contain is mentioned, for example.
- the hole injection material contained in the hole injection layer may be contained singly or in combination of two or more.
- the electron injection layer is a layer containing an electron injection material.
- an electron injection material contained in an electron injection layer the electron injection material which the above-mentioned 1st composition may contain is mentioned, for example.
- the electron injecting material contained in the electron injecting layer may be contained singly or in combination of two or more.
- the substrate in the light emitting element may be any substrate that can form an electrode and does not change chemically when forming an organic layer, and is, for example, a substrate made of a material such as glass, plastic, or silicon. If an opaque substrate is used, it is preferred that the electrode furthest from the substrate be transparent or translucent.
- Examples of the material of the anode include conductive metal oxides and semitransparent metals, preferably indium oxide, zinc oxide, tin oxide; indium tin oxide (ITO), indium zinc oxide, etc. Conductive compounds; complexes of silver, palladium and copper (APC); NESA, gold, platinum, silver, copper.
- the material of the cathode includes, for example, metals such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, zinc and indium; alloys of two or more of them; one of them And alloys thereof with one or more species of silver, copper, manganese, titanium, cobalt, nickel, tungsten, and tin; and graphite and graphite intercalation compounds.
- the alloy include magnesium-silver alloy, magnesium-indium alloy, magnesium-aluminium alloy, indium-silver alloy, lithium-aluminium alloy, lithium-magnesium alloy, lithium-indium alloy, calcium-aluminium alloy.
- At least one of the anode and the cathode is usually transparent or translucent, but preferably the anode is transparent or translucent.
- Examples of the method of forming the anode and the cathode include a vacuum evaporation method, a sputtering method, an ion plating method, a plating method and a laminating method.
- a low molecular weight compound is used as a method of forming each of the first light emitting layer, the second light emitting layer, the hole transporting layer, the electron transporting layer, the hole injecting layer, the electron injecting layer and the like.
- a vacuum evaporation method from powder a method by film formation from a solution or a molten state may be mentioned, and in the case of using a polymer compound, a method by film formation from a solution or a molten state may be mentioned.
- the first light emitting layer, the second light emitting layer, the hole transporting layer, the electron transporting layer, the hole injecting layer and the electron injecting layer include the first ink, the second ink, and the light emitting material described above, the holes It can be formed by an application method such as a spin coating method or an inkjet printing method using an ink containing each of a transport material, an electron transport material, a hole injection material and an electron injection material.
- a planar anode and a cathode may be arranged to overlap.
- a method of installing a mask provided with a pattern-like window on the surface of a planar light-emitting element is used.
- both the anode and the cathode may be formed in stripes and arranged orthogonal to each other.
- Partial color display and multi-color display can be performed by a method of separately coating a plurality of types of polymer compounds different in emission color and a method of using a color filter or a fluorescence conversion filter.
- the dot matrix display device can be driven passively, or can be driven active in combination with a TFT or the like.
- These display devices can be used as displays of computers, televisions, portable terminals, and the like.
- a planar light emitting element can be suitably used as a planar light source for backlight of a liquid crystal display device or a planar light source for illumination. If a flexible substrate is used, it can also be used as a curved light source and display device.
- the polystyrene equivalent number average molecular weight (Mn) of the polymer compound and the polystyrene equivalent weight average molecular weight (Mw) were determined by size exclusion chromatography (SEC) using tetrahydrofuran as a mobile phase.
- SEC size exclusion chromatography
- the polymer compound to be measured was dissolved in tetrahydrofuran at a concentration of about 0.05% by mass, and 10 ⁇ L was injected into SEC.
- the mobile phase flowed at a flow rate of 2.0 mL / min.
- PLgel MIXED-B manufactured by Polymer Laboratories
- a UV-VIS detector manufactured by Shimadzu Corporation, trade name: SPD-10Avp was used.
- ⁇ E ST of the compound was structural optimization of the ground state of the compound by the density functional theory of B3LYP level. At that time, 6-31 G * was used as a basis function. Then, using the obtained structure-optimized structure, ⁇ E ST of the compound was calculated by the time-dependent density functional method of B3LYP level. In addition, it calculated using Gaussian 09 as a quantum chemistry calculation program.
- the energy level of the lowest triplet excited state of the polymer compound was determined by measuring the phosphorescence spectrum at 77 K of the polymer compound. Specifically, the polymer compound was dissolved in xylene at a concentration of 3.0% by mass. After forming a film on a glass substrate by a drop casting method using the obtained xylene solution, a film of a polymer compound was formed by vacuum drying at room temperature. After the glass substrate on which the film of the polymer compound was formed was introduced into a glass tube in a nitrogen atmosphere with an oxygen concentration of less than 5 ppm, the glass tube was sealed. The sealed glass tube was cooled to 77 K with liquid nitrogen and used as a measurement sample.
- the obtained measurement sample was irradiated with excitation light (excitation wavelength: 325 nm), and the phosphorescence emission spectrum of the polymer compound was measured.
- the value obtained by converting the maximum peak wavelength of the shortest wavelength into energy in the phosphorescence emission spectrum of the obtained polymer compound was regarded as the energy level of the lowest triplet excited state of the polymer compound.
- a rotary optical chopper was used.
- an excitation light source a He-Cd laser (Kinmon light wave company) was used.
- a Hamamatsu Photonics multichannel spectrometer (trade name: PMA-12) was used as a detector.
- Compound M8 was synthesized according to the method described in WO 2013/146806.
- Compound M9 was synthesized according to the method described in WO 2017/146083.
- Compound M10 was synthesized according to the method described in JP-A-2010-215886.
- Compound M11 was synthesized according to the method described in WO 2016/031639.
- Compound M12 was synthesized according to the method described in JP-A-2011-174062.
- Compound M13 was synthesized according to the method described in WO 2016/031639.
- Compound M14 was synthesized according to the method described in JP-A-2011-174062.
- Compound M15 was synthesized according to the method described in WO 2013/191088.
- Compound M16 was synthesized according to the method described in WO 2013/191088.
- Compound M17 was synthesized according to the method described in WO 2016/031639.
- Compound M18 was synthesized according to the method described in WO 2013/146806.
- Compound M19 was synthesized according to the method described in WO 2016/031639.
- Compound M20 was synthesized according to the method described in WO 2002/045184.
- Step 1 Synthesis of Polymer Compound HTL-1 (Step 1) After setting the inside of a reaction vessel to an inert gas atmosphere, Compound M1 (0.995 g), Compound M4 (0.736 g), Compound M2 (Compound M2 0.106 g), compound M3 (0.0924 g), dichlorobis [tris (2-methoxyphenyl) phosphine] palladium (1.8 mg) and toluene (50 ml) were added and heated to 105.degree. (Step 2) A 20% by mass aqueous tetraethylammonium hydroxide solution (6.6 ml) was added dropwise to the obtained reaction solution, and the mixture was refluxed for 5.5 hours.
- Step 2 A 20% by mass aqueous tetraethylammonium hydroxide solution (6.6 ml) was added dropwise to the obtained reaction solution, and the mixture was refluxed for 5.5 hours.
- Step 3 Thereafter, there were added phenylboronic acid (24.4 mg), 20% by mass aqueous tetraethylammonium hydroxide solution (6.6 ml) and dichlorobis [tris (2-methoxyphenyl) phosphine] palladium (1.8 mg). In addition, it was refluxed for 14 hours.
- Step 4 Thereafter, an aqueous solution of sodium diethyldithiacarbamate was added thereto, and the mixture was stirred at 80 ° C. for 2 hours.
- the resulting reaction solution was cooled and then washed twice with water, twice with a 3% by mass aqueous acetic acid solution, and twice with water, and the obtained solution was added dropwise to methanol, whereby a precipitate was generated.
- the obtained precipitate was dissolved in toluene, and purified by passing through an alumina column and a silica gel column in this order.
- the resulting solution was added dropwise to methanol and stirred, whereupon a precipitate formed.
- the resulting precipitate was collected by filtration and dried to obtain 0.91 g of a polymer compound HTL-1.
- the Mn of the polymer compound HTL-1 was 5.2 ⁇ 10 4 and the Mw was 2.5 ⁇ 10 5 .
- the polymer compound HTL-1 has a structural unit derived from the compound M1, a structural unit derived from the compound M4, a structural unit derived from the compound M2, and a compound in the theoretical value determined from the amount of the starting materials It is a copolymer in which the constituent unit derived from M3 is constituted at a molar ratio of 50: 40: 5: 5.
- the energy level of the lowest triplet excited state of the polymer compound HTL-1 was 2.45 eV.
- the polymer compound HTL-2 was synthesized according to the method described in WO 2013/146806 using Compound M1, Compound M5, and Compound M6. did.
- the Mn of the polymer compound HTL-2 was 1.9 ⁇ 10 4 and the Mw was 9.9 ⁇ 10 4 .
- the polymer compound HTL-2 has a structural unit derived from the compound M1, a structural unit derived from the compound M5, and a structural unit derived from the compound M6 in theoretical values determined from the amounts of the raw materials charged. It is a copolymer comprised by the molar ratio of 50: 42.5: 7.5.
- the energy level of the lowest triplet excited state of the polymer compound HTL-2 was 2.33 eV.
- the polymer compound HTL-3 is a compound M7, a compound M8, and a compound M9 according to the method described in WO 2015/145871. Was synthesized.
- the Mn of the polymer compound HTL-3 was 2.8 ⁇ 10 4 and the Mw was 1.1 ⁇ 10 5 .
- the constitutional unit derived from the compound M7, the constitutional unit derived from the compound M8, and the constitutional unit derived from the compound M9 are It is a copolymer comprised by the molar ratio of 40:10:50.
- the energy level of the lowest triplet excited state of the polymer compound HTL-3 was 2.69 eV.
- the polymer compound HTL-4 is described in WO 2016/031639 using a compound M1, a compound M10, a compound M2 and a compound M3. It synthesize
- the Mn of the polymer compound HTL-4 was 2.4 ⁇ 10 4 and the Mw was 1.7 ⁇ 10 5 .
- the polymer compound HTL-4 has a structural unit derived from the compound M1, a structural unit derived from the compound M10, a structural unit derived from the compound M2, and a compound in the theoretical value determined from the amount of the starting materials It is a copolymer in which the constituent unit derived from M3 is constituted at a molar ratio of 50: 40: 5: 5.
- the energy level of the lowest triplet excited state of the polymer compound HTL-4 was 2.49 eV.
- the polymer compound HTL-5 is described in WO 2016/031639 using a compound M11, a compound M12, a compound M2 and a compound M3. It synthesize
- the Mn of the polymer compound HTL-5 was 5.3 ⁇ 10 4 and the Mw was 2.0 ⁇ 10 5 .
- the polymer compound HTL-5 has a structural unit derived from the compound M11, a structural unit derived from the compound M12, a structural unit derived from the compound M2, and a compound in the theoretical value determined from the amount of the raw materials charged It is a copolymer in which the constituent unit derived from M3 is constituted at a molar ratio of 50: 40: 5: 5.
- the energy level of the lowest triplet excited state of the polymer compound HTL-5 was 2.37 eV.
- the polymer compound HTL-6 has a structural unit derived from the compound M13, a structural unit derived from the compound M12, a structural unit derived from the compound M2, and a compound in the theoretical value determined from the amount of the raw materials charged It is a copolymer in which the constituent unit derived from M3 is constituted at a molar ratio of 50: 40: 5: 5.
- the energy level of the lowest triplet excited state of the polymer compound HTL-6 was 2.36 eV.
- the polymer compound HTL-7 has a structural unit derived from the compound M14, a structural unit derived from the compound M15, a structural unit derived from the compound M16, and the compound in the theoretical value determined from the amount of the starting materials It is a copolymer in which the constituent unit derived from M17 is constituted at a molar ratio of 40: 5: 5: 50.
- the energy level of the lowest triplet excited state of the polymer compound HTL-7 was 2.33 eV.
- the polymer compound HTL-9 was synthesized according to the method described in WO 2016/125560, using Compound M18, Compound M8, and Compound M4. did.
- the Mn of the polymer compound HTL-5 was 3.6 ⁇ 10 4
- the Mw was 2.0 ⁇ 10 5 .
- the constitutional unit derived from the compound M18, the constitutional unit derived from the compound M8, and the constitutional unit derived from the compound M4 are It is a copolymer comprised by the molar ratio of 40:10:50.
- the energy level of the lowest triplet excited state of the polymer compound HTL-9 was 2.46 eV.
- the polymer compound HTL-C2 has a structural unit derived from the compound M14, a structural unit derived from the compound M5, a structural unit derived from the compound M20, and a compound It is a copolymer in which the constituent unit derived from M3 is constituted at a molar ratio of 50: 30: 12.5: 7.5.
- the energy level of the lowest triplet excited state of the polymer compound HTL-C2 was 2.16 eV.
- Synthesis Example G1 Synthesis of Metal Complexes G1 to G6
- the metal complex G1 was synthesized according to the method described in JP-A-2013-237789.
- the metal complex G2 was synthesized according to the method described in WO 2009/131255.
- the metal complex G3 was synthesized according to the method described in WO 2011/032626.
- the metal complex G4 was synthesized according to the method described in JP-A-2014-224101.
- Metal complexes G5 and G6 were synthesized according to the method described in JP-A-2014-224101.
- the ⁇ E ST value of the compound H1 was 0.130 eV.
- the ⁇ E ST value of the compound H2 was 0.063 eV.
- the ⁇ E ST value of the compound H3 was 0.576 eV.
- the ⁇ E ST value of the compound H4 was 0.096 eV.
- the ⁇ E ST value of the compound H5 was 0.066 eV.
- the value of ⁇ E ST of the compound H6 was 0.156 eV.
- the ⁇ E ST value of the compound H7 was 0.322 eV.
- the ⁇ E ST value of the compound HC1 was 0.448 eV.
- the ⁇ E ST value of the compound HC2 was 0.872 eV.
- the ⁇ E ST value of the compound HC3 was 0.451 eV.
- the ⁇ E ST value of the compound HC4 was 0.591 eV.
- Example D1 Production and Evaluation of Light-Emitting Element D1 (Formation of Anode and Hole Injection Layer)
- An anode was formed by depositing an ITO film with a thickness of 45 nm on a glass substrate by sputtering.
- AQ-1200 manufactured by Plextronics
- AQ-1200 which is a hole injection agent of polythiophene sulfonic acid type, is formed into a film with a thickness of 35 nm by spin coating, and 170 ° C. on a hot plate under an air atmosphere.
- the hole injection layer was formed by heating for 15 minutes.
- the polymer compound HTL-1 was dissolved in xylene at a concentration of 0.6% by mass. Using the obtained xylene solution, a film is formed to a thickness of 20 nm by spin coating on the hole injection layer, and the film is heated at 180 ° C. for 60 minutes on a hot plate under a nitrogen gas atmosphere. Form an organic layer. By this heating, the polymer compound HTL-1 became a crosslinked body.
- EL light emission was observed by applying a voltage to the light emitting device D1.
- Example D4 Production and Evaluation of Light-Emitting Element D4 Using “Polymer Compound HTL-4” instead of “Polymer Compound HTL-3” in “Formation of the Second Organic Layer” in Example D3
- a light emitting device D4 was produced in the same manner as in Example D3 except for the difference.
- EL light emission was observed by applying a voltage to the light emitting device D4.
- Example D5 Production and Evaluation of Light-Emitting Element D5 Using “Polymer Compound HTL-1” instead of “Polymer Compound HTL-3” in “Formation of the Second Organic Layer” in Example D3
- a light emitting device D5 was produced in the same manner as in Example D3 except for the difference.
- EL light emission was observed by applying a voltage to the light emitting element D5.
- Example D6 Production and Evaluation of Light-Emitting Element D6 Using “Polymer Compound HTL-5” instead of “Polymer Compound HTL-3” in “Formation of the Second Organic Layer” in Example D3
- a light emitting device D6 was produced in the same manner as in Example D3 except for the differences. EL light emission was observed by applying a voltage to the light emitting element D6.
- Example D7 Preparation and Evaluation of Light-Emitting Element D7 Using “Polymer Compound HTL-6” instead of “Polymer Compound HTL-3” in “Formation of the Second Organic Layer” in Example D3
- a light emitting device D7 was produced in the same manner as in Example D3 except for the difference.
- EL light emission was observed.
- Example D8 Preparation and Evaluation of Light-Emitting Element D8 “Polymer Compound HTL-7” was used in place of “Polymer Compound HTL-3” in “Formation of the Second Organic Layer” in Example D3.
- a light emitting device D8 was produced in the same manner as in Example D3 except for the differences. EL light emission was observed by applying a voltage to the light emitting element D8.
- Example D9 Preparation and Evaluation of Light-Emitting Element D9 Using “Polymer Compound HTL-8” instead of “Polymer Compound HTL-3” in “Formation of the Second Organic Layer” in Example D3
- EL light emission was observed by applying a voltage to the light emitting element D9.
- Example D10 Preparation and Evaluation of Light-Emitting Element D10 Using “polymer compound HTL-2” instead of “polymer compound HTL-3” in “Formation of the second organic layer” in Example D3
- a light emitting device D10 was produced in the same manner as in Example D3 except for the above.
- EL light emission was observed.
- EL light emission was observed.
- EL light emission was observed.
- Example D1 a light emitting device CD6 was produced. EL light emission was observed by applying a voltage to the light emitting element CD6.
- Example D22 Production and Evaluation of Light-Emitting Element D22 (Formation of Anode and Hole Injection Layer)
- An anode was formed by depositing an ITO film with a thickness of 45 nm on a glass substrate by sputtering.
- AQ-1200 manufactured by Plextronics
- AQ-1200 which is a hole injection agent of polythiophene sulfonic acid type, is formed into a film by spin coating at a thickness of 65 nm, and 170 ° C. on a hot plate under an air atmosphere.
- the hole injection layer was formed by heating for 15 minutes.
- the polymer compound HTL-2 was dissolved in xylene at a concentration of 0.6% by mass. Using the obtained xylene solution, a film is formed to a thickness of 20 nm by spin coating on the hole injection layer, and the film is heated at 180 ° C. for 60 minutes on a hot plate under a nitrogen gas atmosphere. Form an organic layer. By this heating, the polymer compound HTL-2 became a crosslinked body.
- Example D24 Production and Evaluation of Light-Emitting Element D24 Using “Polymer Compound HTL-1” instead of “Polymer Compound HTL-2” in “Formation of the Second Organic Layer” in Example D22
- a light emitting device D24 was produced in the same manner as in Example D22 except for the above.
- EL light emission was observed.
- a light emitting device D27 was produced in the same manner as in Example D22 except that the light emitting device D27 was changed to By applying a voltage to the light emitting device D27, EL light emission was observed.
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Abstract
Description
そこで、本発明は、外部量子効率が優れる発光素子を提供することを目的とする。
第1の有機層が、燐光発光性遷移金属錯体と、要件(I)及び要件(II)からなる群から選ばれる少なくとも1つの要件を満たし、遷移金属を含まない低分子化合物とを含有する層であり、
第2の有機層が、架橋基を有する構成単位を含む高分子化合物の架橋体を含有する層であり、該高分子化合物の最低三重項励起状態のエネルギー準位が2.30eV以上である、発光素子。
(I)最低三重項励起状態のエネルギー準位と最低一重項励起状態のエネルギー準位との差の絶対値が0.25eV未満である。
(II)式(T-1)で表される。
nT1は、0以上5以下の整数を表す。nT1が複数存在する場合、それらは同一でも異なっていてもよい。
nT2は、1以上10以下の整数を表す。
ArT1は、置換アミノ基又は1価の複素環基を表し、該1価の複素環基は、環内に二重結合を有さない窒素原子を含み、且つ、環内に=N-で表される基、-C(=O)-で表される基、-S(=O)-で表される基、及び、-S(=O)2-で表される基を含まない1価の複素環基であり、これらの基は置換基を有していてもよい。ArT1が複数存在する場合、それらは同一でも異なっていてもよい。
LT1は、アルキレン基、シクロアルキレン基、アリーレン基、2価の複素環基、-NRT1'-で表される基、酸素原子又は硫黄原子を表し、これらの基は置換基を有していてもよい。RT1'は、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。LT1が複数存在する場合、それらは同一でも異なっていてもよい。
ArT2は、芳香族炭化水素基又は複素環基を表し、これらの基は置換基を有していてもよい。
但し、ArT1のすべてが置換アミノ基又は式(T1-1A)で表される基である場合、ArT2は、環内に=N-で表される基を2個以上含む単環の複素環基、環内に-C(=O)-で表される基、-S(=O)-で表される基、-S(=O)2-で表される基及び=N-で表される基からなる群から選ばれる少なくとも1つの基を含む縮合環の複素環基、環内に-C(=O)-で表される基を含む芳香族炭化水素基、又は、電子求引性基を有する芳香族炭化水素基であり、これらの基は置換基を有していてもよい。]
XT1は、単結合、酸素原子、硫黄原子、-N(RXT1)-で表される基、又は、-C(RXT1')2-で表される基を表す。RXT1及びRXT1'は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。複数存在するRXT1'は、同一でも異なっていてもよく、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。
RT1、RT2、RT3、RT4、RT5、RT6、RT7及びRT8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。]
[2]前記高分子化合物の最低三重項励起状態のエネルギー準位が2.34eV以上である、[1]に記載の発光素子。
[3]前記架橋基が、架橋基A群から選ばれる架橋基である、[1]又は[2]に記載の発光素子。
(架橋基A群)
[4]前記架橋基を有する構成単位が、式(2)又は式(2’)で表される構成単位である、[3]に記載の発光素子。
nAは0~5の整数を表し、nは1又は2を表す。nAが複数存在する場合、それらは同一でも異なっていてもよい。
Ar3は、芳香族炭化水素基又は複素環基を表し、これらの基は置換基を有していてもよい。
LAは、アルキレン基、シクロアルキレン基、アリーレン基、2価の複素環基、-NR’-で表される基、酸素原子又は硫黄原子を表し、これらの基は置換基を有していてもよい。R’は、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。LAが複数存在する場合、それらは同一でも異なっていてもよい。
Xは、前記架橋基A群から選ばれる架橋基を表す。Xが複数存在する場合、それらは同一でも異なっていてもよい。]
mAは0~5の整数を表し、mは1~4の整数を表し、cは0又は1を表す。mAが複数存在する場合、それらは同一でも異なっていてもよい。
Ar5は、芳香族炭化水素基、複素環基、又は、少なくとも1種の芳香族炭化水素環と少なくとも1種の複素環とが直接結合した基を表し、これらの基は置換基を有していてもよい。
Ar4及びAr6は、それぞれ独立に、アリーレン基又は2価の複素環基を表し、これらの基は置換基を有していてもよい。
Ar4、Ar5及びAr6はそれぞれ、該基が結合している窒素原子に結合している該基以外の基と、直接結合して、又は、酸素原子若しくは硫黄原子を介して結合して、環を形成していてもよい。
KAは、アルキレン基、シクロアルキレン基、アリーレン基、2価の複素環基、-NR’-で表される基、酸素原子又は硫黄原子を表し、これらの基は置換基を有していてもよい。R’は、前記と同じ意味を表す。KAが複数存在する場合、それらは同一でも異なっていてもよい。
X’は、前記架橋基A群から選ばれる架橋基、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。X’が複数存在する場合、それらは同一でも異なっていてもよい。但し、少なくとも1つのX’は、前記架橋基A群から選ばれる架橋基である。]
[5]前記ArT1の少なくとも1つが、式(T1-1)で表される基である、[1]~[4]のいずれかに記載の発光素子。
XT1は、前記と同じ意味を表す。
環RT1及び環RT2は、それぞれ独立に、環内に-C(=O)-で表される基を含まない芳香族炭化水素環、又は、環内に=N-で表される基、-C(=O)-で表される基、-S(=O)-で表される基、及び、-S(=O)2-で表される基を含まない複素環を表し、これらの環は置換基を有していてもよい。]
[6]前記式(T1-1)で表される基が、式(T1-1A)、式(T1-1B)、式(T1-1C)又は式(T1-1D)で表される基である、[5]に記載の発光素子。
XT1は、前記と同じ意味を表す。
XT2及びXT3は、それぞれ独立に、単結合、酸素原子、硫黄原子、-N(RXT2)-で表される基、又は、-C(RXT2')2-で表される基を表す。RXT2及びRXT2'は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。複数存在するRXT2'は、同一でも異なっていてもよく、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。
RT1、RT2、RT3、RT4、RT5、RT6、RT7、RT8、RT9、RT10、RT11及びRT12は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。]
[7]前記ArT2が、環内に=N-で表される基を2個以上含む、置換基を有していてもよい単環の複素環基である、[1]~[6]のいずれかに記載の発光素子。
[8]前記遷移金属を含まない低分子化合物が、前記要件(I)及び前記要件(II)を満たす、[1]~[7]のいずれかに記載の発光素子。
[9]前記燐光発光性遷移金属錯体が、式(1)で表される金属錯体である、[1]~[8]のいずれかに記載の発光素子。
Mは、ルテニウム原子、ロジウム原子、パラジウム原子、イリジウム原子又は白金原子を表す。
n1は1以上の整数を表し、n2は0以上の整数を表す。但し、Mがルテニウム原子、ロジウム原子又はイリジウム原子の場合、n1+n2は3であり、Mがパラジウム原子又は白金原子の場合、n1+n2は2である。
E1及びE2は、それぞれ独立に、炭素原子又は窒素原子を表す。但し、E1及びE2の少なくとも一方は炭素原子である。E1及びE2が複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。
環L1は、芳香族複素環を表し、この環は置換基を有していてもよい。該置換基が複数存在する場合、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。環L1が複数存在する場合、それらは同一でも異なっていてもよい。
環L2は、芳香族炭化水素環又は芳香族複素環を表し、これらの環は置換基を有していてもよい。該置換基が複数存在する場合、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。環L2が複数存在する場合、それらは同一でも異なっていてもよい。
環L1が有していてもよい置換基と、環L2が有していてもよい置換基とは、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。
A1-G1-A2は、アニオン性の2座配位子を表す。A1及びA2は、それぞれ独立に、炭素原子、酸素原子又は窒素原子を表し、これらの原子は環を構成する原子であってもよい。G1は、単結合、又は、A1及びA2とともに2座配位子を構成する原子団を表す。A1-G1-A2が複数存在する場合、それらは同一でも異なっていてもよい。]
[10]前記式(1)で表される金属錯体が、式(1-A)で表される金属錯体である、[9]に記載の発光素子。
M、n1、n2、E1及びA1-G1-A2は、前記と同じ意味を表す。
環L1Aは、ピリジン環、ジアザベンゼン環、アザナフタレン環、ジアザナフタレン環、トリアゾール環又はジアゾール環を表し、これらの環は置換基を有していてもよい。該置換基が複数存在する場合、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。環L1Aが複数存在する場合、それらは同一でも異なっていてもよい。
E21A、E22A、E23A及びE24Aは、それぞれ独立に、窒素原子又は炭素原子を表す。E21A、E22A、E23A及びE24Aが複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。E21Aが窒素原子の場合、R21Aは存在しない。E22Aが窒素原子の場合、R22Aは存在しない。E23Aが窒素原子の場合、R23Aは存在しない。E24Aが窒素原子の場合、R24Aは存在しない。
R21A、R22A、R23A及びR24Aは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基又はハロゲン原子を表し、これらの基は置換基を有していてもよい。R21A、R22A、R23A及びR24Aが複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。R21AとR22A、R22AとR23A、R23AとR24A、及び、環L1Aが有していてもよい置換基とR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。
環L2Aは、ベンゼン環、ピリジン環又はジアザベンゼン環を表す。]
[11]前記式(1-A)で表される金属錯体が、式(1-B1)、式(1-B2)、式(1-B3)、式(1-B4)又は式(1-B5)で表される金属錯体である、[10]に記載の発光素子。
M、n1、n2、R21A、R22A、R23A、R24A及びA1-G1-A2は、前記と同じ意味を表す。
n11及びn12は、それぞれ独立に、1又は2を表す。但し、Mがルテニウム原子、ロジウム原子又はイリジウム原子の場合、n11+n12は3であり、Mがパラジウム原子又は白金原子の場合、n11+n12は2である。
R11B、R12B、R13B、R14B、R15B、R16B、R17B及びR18Bは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基又はハロゲン原子を表し、これらの基は置換基を有していてもよい。R11B、R12B、R13B、R14B、R15B、R16B、R17B及びR18Bが複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。
式(1-B1)中、R11BとR12B、R12BとR13B、R13BとR14B、及び、R11BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B2)中、R13BとR14B、R13BとR15B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R18BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B3)中、R11BとR12B、R12BとR13B、R13BとR14B、R11BとR21A、R13BとR15B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R18BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B4)中、R11BとR18B、R14BとR15B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R11BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B5)中、R11BとR12B、R12BとR18B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R11BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。]
[12]前記第1の有機層が、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、蛍光発光性化合物及び酸化防止剤からなる群より選ばれる少なくとも1種を更に含有する、[1]~[11]のいずれかに記載の発光素子。
[13]前記第1の有機層と前記第2の有機層とが隣接している、[1]~[12]のいずれかに記載の発光素子。
[14]前記第2の有機層が、前記陽極及び前記第1の有機層の間に設けられた層である、[1]~[13]のいずれかに記載の発光素子。
本明細書で共通して用いられる用語は、特記しない限り、以下の意味である。
高分子化合物は、ブロック共重合体、ランダム共重合体、交互共重合体、グラフト共重合体のいずれであってもよいし、その他の態様であってもよい。
高分子化合物の末端基は、重合活性基がそのまま残っていると、高分子化合物を発光素子の作製に用いた場合、発光特性又は輝度寿命が低下する可能性があるので、好ましくは安定な基である。高分子化合物の末端基としては、好ましくは主鎖と共役結合している基であり、例えば、炭素-炭素結合を介して高分子化合物の主鎖と結合するアリール基又は1価の複素環基が挙げられる。
アルキル基は、置換基を有していてもよく、例えば、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、2-ブチル基、イソブチル基、tert-ブチル基、ペンチル基、イソアミル基、2-エチルブチル基、ヘキシル基、ヘプチル基、オクチル基、2-エチルヘキシル基、3-プロピルヘプチル基、デシル基、3,7-ジメチルオクチル基、2-エチルオクチル基、2-ヘキシルデシル基、ドデシル基、及び、これらの基における水素原子が、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、フッ素原子等で置換された基(例えば、トリフルオロメチル基、ペンタフルオロエチル基、パーフルオロブチル基、パーフルオロヘキシル基、パーフルオロオクチル基、3-フェニルプロピル基、3-(4-メチルフェニル)プロピル基、3-(3,5-ジ-ヘキシルフェニル)プロピル基、6-エチルオキシヘキシル基)が挙げられる。
「シクロアルキル基」の炭素原子数は、置換基の炭素原子数を含めないで、通常3~50であり、好ましくは3~30であり、より好ましくは4~20である。
シクロアルキル基は、置換基を有していてもよく、例えば、シクロヘキシル基、シクロヘキシルメチル基、シクロヘキシルエチル基が挙げられる。
アリール基は、置換基を有していてもよく、例えば、フェニル基、1-ナフチル基、2-ナフチル基、1-アントラセニル基、2-アントラセニル基、9-アントラセニル基、1-ピレニル基、2-ピレニル基、4-ピレニル基、2-フルオレニル基、3-フルオレニル基、4-フルオレニル基、2-フェニルフェニル基、3-フェニルフェニル基、4-フェニルフェニル基、及び、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、フッ素原子等で置換された基が挙げられる。
アルコキシ基は、置換基を有していてもよく、例えば、メトキシ基、エトキシ基、プロピルオキシ基、イソプロピルオキシ基、ブチルオキシ基、イソブチルオキシ基、tert-ブチルオキシ基、ペンチルオキシ基、ヘキシルオキシ基、ヘプチルオキシ基、オクチルオキシ基、2-エチルヘキシルオキシ基、ノニルオキシ基、デシルオキシ基、3,7-ジメチルオクチルオキシ基、ラウリルオキシ基、及び、これらの基における水素原子が、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、フッ素原子等で置換された基が挙げられる。
「シクロアルコキシ基」の炭素原子数は、置換基の炭素原子数を含めないで、通常3~40であり、好ましくは4~10である。
シクロアルコキシ基は、置換基を有していてもよく、例えば、シクロヘキシルオキシ基が挙げられる。
アリールオキシ基は、置換基を有していてもよく、例えば、フェノキシ基、1-ナフチルオキシ基、2-ナフチルオキシ基、1-アントラセニルオキシ基、9-アントラセニルオキシ基、1-ピレニルオキシ基、及び、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、フッ素原子等で置換された基が挙げられる。
「芳香族複素環式化合物」は、オキサジアゾール、チアジアゾール、チアゾール、オキサゾール、チオフェン、ピロール、ホスホール、フラン、ピリジン、ピラジン、ピリミジン、トリアジン、ピリダジン、キノリン、イソキノリン、カルバゾール、ジベンゾホスホール等の複素環自体が芳香族性を示す化合物、及び、フェノキサジン、フェノチアジン、ジベンゾボロール、ジベンゾシロール、ベンゾピラン等の複素環自体は芳香族性を示さなくとも、複素環に芳香環が縮環されている化合物を意味する。
1価の複素環基は、置換基を有していてもよく、例えば、チエニル基、ピロリル基、フリル基、ピリジニル基、ピペリジニル基、キノリニル基、イソキノリニル基、ピリミジニル基、トリアジニル基、及び、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基等で置換された基が挙げられる。
置換アミノ基としては、例えば、ジアルキルアミノ基、ジシクロアルキルアミノ基及びジアリールアミノ基が挙げられる。
アミノ基としては、例えば、ジメチルアミノ基、ジエチルアミノ基、ジフェニルアミノ基、ビス(4-メチルフェニル)アミノ基、ビス(4-tert-ブチルフェニル)アミノ基、ビス(3,5-ジ-tert-ブチルフェニル)アミノ基が挙げられる。
「シクロアルケニル基」の炭素原子数は、置換基の炭素原子数を含めないで、通常3~30であり、好ましくは4~20である。
アルケニル基及びシクロアルケニル基は、置換基を有していてもよく、例えば、ビニル基、1-プロペニル基、2-プロペニル基、2-ブテニル基、3-ブテニル基、3-ペンテニル基、4-ペンテニル基、1-ヘキセニル基、5-ヘキセニル基、7-オクテニル基、及び、これらの基が置換基を有する基が挙げられる。
「シクロアルキニル基」の炭素原子数は、置換基の炭素原子を含めないで、通常4~30であり、好ましくは4~20である。
アルキニル基及びシクロアルキニル基は、置換基を有していてもよく、例えば、エチニル基、1-プロピニル基、2-プロピニル基、2-ブチニル基、3-ブチニル基、3-ペンチニル基、4-ペンチニル基、1-ヘキシニル基、5-ヘキシニル基、及び、これらの基が置換基を有する基が挙げられる。
アリーレン基は、置換基を有していてもよく、例えば、フェニレン基、ナフタレンジイル基、アントラセンジイル基、フェナントレンジイル基、ジヒドロフェナントレンジイル基、ナフタセンジイル基、フルオレンジイル基、ピレンジイル基、ペリレンジイル基、クリセンジイル基、及び、これらの基が置換基を有する基が挙げられ、好ましくは、式(A-1)~式(A-20)で表される基である。アリーレン基は、これらの基が複数結合した基を含む。
2価の複素環基は、置換基を有していてもよく、例えば、ピリジン、ジアザベンゼン、トリアジン、アザナフタレン、ジアザナフタレン、カルバゾール、ジベンゾフラン、ジベンゾチオフェン、ジベンゾシロール、フェノキサジン、フェノチアジン、アクリジン、ジヒドロアクリジン、フラン、チオフェン、アゾール、ジアゾール、トリアゾールから、環を構成する炭素原子又はヘテロ原子に直接結合している水素原子のうち2個の水素原子を除いた2価の基が挙げられ、好ましくは、式(AA-1)~式(AA-34)で表される基である。2価の複素環基は、これらの基が複数結合した基を含む。
本発明の発光素子は、
陽極と、陰極と、陽極及び陰極の間に設けられた第1の有機層と、陽極及び陰極の間に設けられた第2の有機層とを有する発光素子であって、
第1の有機層が、燐光発光性遷移金属錯体と、要件(I)及び要件(II)からなる群から選ばれる少なくとも1つの要件を満たし、遷移金属を含まない低分子化合物とを含有する層であり、
第2の有機層が、架橋基を有する構成単位を含む高分子化合物の架橋体を含有する層であり、該高分子化合物の最低三重項励起状態のエネルギー準位が2.30eV以上である、発光素子である。
第1の有機層を湿式法により形成する場合、後述する第1のインクを用いることが好ましい。
加熱の時間は、通常、0.1分~1000分であり、好ましくは0.5分~500分であり、より好ましくは1分~120分であり、更に好ましくは10分~60分である。
本発明の発光素子における第1の有機層に含有される燐光発光性遷移金属錯体について、説明する。
燐光発光性遷移金属錯体は、本発明の発光素子の外部量子効率がより優れるので、式(1)で表される金属錯体であることが好ましい。
Mがルテニウム原子、ロジウム原子又はイリジウム原子の場合、n1は2又は3であることが好ましく、3であることがより好ましい。
Mがパラジウム原子又は白金原子の場合、n1は2であることが好ましい。
E1及びE2は、炭素原子であることが好ましい。
環L1としては、例えば、ジアゾール環、トリアゾール環、テトラゾール環、ピリジン環、ジアザベンゼン環、トリアジン環、アザナフタレン環及びジアザナフタレン環が挙げられ、好ましくは、ピリジン環、ジアザベンゼン環、アザナフタレン環、ジアザナフタレン環、トリアゾール環又はジアゾール環であり、より好ましくは、ピリジン環、ジアザベンゼン環、アザナフタレン環、ジアザナフタレン環であり、更に好ましくは、ピリジン環、キノリン環又はイソキノリン環であり、これらの環は置換基を有していてもよい。
環L2で表される芳香族複素環の炭素原子数は、置換基の炭素原子数を含めないで、通常2~60であり、好ましくは3~30であり、より好ましくは4~15である。環L2で表される芳香族複素環としては、ピロール環、ジアゾール環、フラン環、チオフェン環、ピリジン環、ジアザベンゼン環及びこれらの環に芳香環が1個以上5個以下縮合した環が挙げられ、本発明の発光素子の外部量子効率がより優れるので、好ましくは、ピリジン環、ジアザベンゼン環、アザナフタレン環、ジアザナフタレン環、インドール環、ベンゾフラン環、ベンゾチオフェン環、カルバゾール環、アザカルバゾール環、ジアザカルバゾール環、ジベンゾフラン環又はジベンゾチオフェン環であり、より好ましくは、ピリジン環、ジアザベンゼン環、カルバゾール環、ジベンゾフラン環又はジベンゾチオフェン環であり、更に好ましくは、ピリジン環又はジアザベンゼン環であり、これらの環は置換基を有していてもよい。環L2が6員の芳香族複素環である場合、E2は炭素原子であることが好ましい。
環L2は、本発明の発光素子の外部量子効率が更に優れるので、好ましくは、ベンゼン環、フルオレン環、ジヒドロフェナントレン環、ピリジン環、ジアザベンゼン環、カルバゾール環、ジベンゾフラン環又はジベンゾチオフェン環であり、より好ましくは、ベンゼン環、ピリジン環又はジアザベンゼン環であり、更に好ましくはベンゼン環であり、これらの環は置換基を有していてもよい。
環L1及び環L2が有していてもよい置換基における1価の複素環基としては、ピリジル基、ピリミジニル基、トリアジニル基、キノリニル基、イソキノリニル基、ジベンゾフラニル基、ジベンゾチエニル基、カルバゾリル基、アザカルバゾリル基、ジアザカルバゾリル基、フェノキサジニル基又はフェノチアジニル基が好ましく、ピリジル基、ピリミジニル基、トリアジニル基、ジベンゾフラニル基、ジベンゾチエニル基又はカルバゾリル基がより好ましく、ピリジル基、ピリミジニル基又はトリアジニル基が更に好ましく、これらの基は置換基を有していてもよい。
環L1及び環L2が有していてもよい置換基における置換アミノ基において、アミノ基が有する置換基としては、アリール基又は1価の複素環基が好ましく、アリール基がより好ましく、これらの基は更に置換基を有していてもよい。アミノ基が有する置換基におけるアリール基の例及び好ましい範囲は、環L1及び環L2が有していてもよい置換基におけるアリール基の例及び好ましい範囲と同じである。アミノ基が有する置換基における1価の複素環基の例及び好ましい範囲は、環L1及び環L2が有していてもよい置換基における1価の複素環基の例及び好ましい範囲と同じである。
mDA1、mDA2及びmDA3は、それぞれ独立に、0以上の整数を表す。
GDAは、窒素原子、芳香族炭化水素基又は複素環基を表し、これらの基は置換基を有していてもよい。
ArDA1、ArDA2及びArDA3は、それぞれ独立に、アリーレン基又は2価の複素環基を表し、これらの基は置換基を有していてもよい。ArDA1、ArDA2及びArDA3が複数ある場合、それらはそれぞれ同一でも異なっていてもよい。
TDAは、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。複数あるTDAは、同一でも異なっていてもよい。]
mDA1、mDA2、mDA3、mDA4、mDA5、mDA6及びmDA7は、それぞれ独立に、0以上の整数を表す。
GDAは、窒素原子、芳香族炭化水素基又は複素環基を表し、これらの基は置換基を有していてもよい。複数あるGDAは、同一でも異なっていてもよい。
ArDA1、ArDA2、ArDA3、ArDA4、ArDA5、ArDA6及びArDA7は、それぞれ独立に、アリーレン基又は2価の複素環基を表し、これらの基は置換基を有していてもよい。ArDA1、ArDA2、ArDA3、ArDA4、ArDA5、ArDA6及びArDA7が複数ある場合、それらはそれぞれ同一でも異なっていてもよい。
TDAは、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。複数あるTDAは、同一でも異なっていてもよい。]
mDA1は、0以上の整数を表す。
ArDA1は、アリーレン基又は2価の複素環基を表し、これらの基は置換基を有していてもよい。ArDA1が複数ある場合、それらは同一でも異なっていてもよい。
TDAは、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。]
GDAが有していてもよい置換基としては、好ましくは、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基であり、より好ましくは、アルキル基、シクロアルキル基、アルコキシ基又はシクロアルコキシ基であり、更に好ましくは、アルキル基又はシクロアルキル基であり、これらの基は置換基を有していてもよい。
GDAは、好ましくは式(GDA-11)~式(GDA-15)で表される基であり、より好ましくは式(GDA-11)~式(GDA-14)で表される基であり、更に好ましくは式(GDA-11)又は式(GDA-14)で表される基である。
*は、式(D-A)におけるArDA1、式(D-B)におけるArDA1、式(D-B)におけるArDA2、又は、式(D-B)におけるArDA3との結合を表す。
**は、式(D-A)におけるArDA2、式(D-B)におけるArDA2、式(D-B)におけるArDA4、又は、式(D-B)におけるArDA6との結合を表す。
***は、式(D-A)におけるArDA3、式(D-B)におけるArDA3、式(D-B)におけるArDA5、又は、式(D-B)におけるArDA7との結合を表す。
RDAは、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基を表し、これらの基は更に置換基を有していてもよい。RDAが複数ある場合、それらは同一でも異なっていてもよい。]
RDAは、前記と同じ意味を表す。
RDBは、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。RDBが複数ある場合、それらは同一でも異なっていてもよい。]
Rp1、Rp2、Rp3及びRp4は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基又はハロゲン原子を表す。Rp1、Rp2及びRp4が複数ある場合、それらはそれぞれ同一であっても異なっていてもよい。
np1は、0~5の整数を表し、np2は0~3の整数を表し、np3は0又は1を表し、np4は0~4の整数を表す。複数あるnp1は、同一でも異なっていてもよい。]
Rp1、Rp2及びRp3は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基又はハロゲン原子を表す。Rp1及びRp2が複数ある場合、それらはそれぞれ同一でも異なっていてもよい。
np1は0~5の整数を表し、np2は0~3の整数を表し、np3は0又は1を表す。np1及びnp2が複数ある場合、それらはそれぞれ同一でも異なっていてもよい。
Rp4、Rp5及びRp6は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基又はハロゲン原子を表す。Rp4、Rp5及びRp6が複数ある場合、それらはそれぞれ同一であっても異なっていてもよい。
np4は0~4の整数を表し、np5は0~5の整数を表し、np6は0~5の整数を表す。]
A1-G1-A2で表されるアニオン性の2座配位子としては、例えば、下記式で表される配位子が挙げられる。。但し、A1-G1-A2で表されるアニオン性の2座配位子は、添え字n1でその数を定義されている配位子とは異なる。
環L1Aが有していてもよい置換基の例及び好ましい範囲は、環L1及び環L2が有していてもよい置換基の例及び好ましい範囲と同じである。
環L1Aが有していてもよい置換基が複数存在する場合、それらは互いに結合して、それぞれが結合する原子とともに環を形成しないことが好ましい。
環L2Aがジアザベンゼン環である場合、E21A及びE23Aが窒素原子であるピリミジン環、又は、E22A及びE24Aが窒素原子であるピリミジン環が好ましく、E22A及びE24Aが窒素原子であるピリミジン環がより好ましい。
環L2Aは、ベンゼン環であることが好ましい。
E21A、E22A、E23A及びE24Aは、炭素原子であることが好ましい。
R21A及びR24Aは、更に好ましくは、水素原子である。R22Aは、更に好ましくは、水素原子又は置換基を有していてもよいアリール基である。R23Aは、更に好ましくは、水素原子又は置換基を有していてもよいアルキル基である。
R21A、R22A、R23A及びR24Aが有していてもよい置換基の例及び好ましい範囲は、環L1及び環L2が有していてもよい置換基が更に有していてもよい置換基の例及び好ましい範囲と同じである。
R21AとR22A、R22AとR23A、R23AとR24A、及び、環L1Aが有していてもよい置換基とR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成しないことが好ましい。
式(1-A1)中、R11AとR21Aとは互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-A2)中、R12AとR13Aとは互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-A3)及び式(1-A4)中、R11AとR12A、R12AとR13A、及び、R11AとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。]
式(1-A3)中、R12Aは、好ましくは、水素原子、アルキル基、シクロアルキル基、アリール基、1価の複素環基又は置換アミノ基であり、より好ましくは、水素原子、アルキル基又はアリール基であり、更に好ましくは、水素原子であり、これらの基は置換基を有していてもよい。
式(1-A4)中、R11Aは、好ましくは、水素原子、アルキル基、シクロアルキル基、アリール基、1価の複素環基又は置換アミノ基であり、より好ましくは、水素原子、アルキル基又はアリール基であり、更に好ましくは、水素原子であり、これらの基は置換基を有していてもよい。
R11A、R12A及びR13Aが有していてもよい置換基の例及び好ましい範囲は、環L1及び環L2が有していてもよい置換基が更に有していてもよい置換基の例及び好ましい範囲と同じである。
R11B、R12B、R13B、R14B、R15B、R16B、R17B及びR18Bは、本発明の発光素子の外部量子効率がより優れるので、好ましくは、水素原子、アルキル基、シクロアルキル基、アリール基、1価の複素環基又は置換アミノ基であり、より好ましくは、水素原子、アルキル基、アリール基又は1価の複素環基であり、これらの基は置換基を有していてもよい。
R12Bは、本発明の発光素子の外部量子効率が更に優れるので、好ましくは、水素原子、アリール基又は1価の複素環基であり、より好ましくは、水素原子であり、これらの基は置換基を有していてもよい。
R13Bは、本発明の発光素子の外部量子効率が更に優れるので、好ましくは、水素原子、アリール基又は1価の複素環基であり、これらの基は置換基を有していてもよい。
R11B、R12B、R13B、R14B、R15B、R16B、R17B及びR18Bが有していてもよい置換基の例及び好ましい範囲は、環L1及び環L2が有していてもよい置換基が更に有していてもよい置換基の例及び好ましい範囲と同じである。
また、「Journal of the American Chemical Society,Vol.107,1431-1432(1985)」、「Journal of the American Chemical Society,Vol.106,6647-6653(1984)」、特表2004-530254号公報、特開2008-179617号公報、特開2011-105701号公報、特表2007-504272号公報、国際公開第2006/121811号、特開2013-147450号公報、特開2014-224101号公報等の文献に記載の公知の方法により製造することも可能である。
本発明の発光素子における第1の有機層に含有される、要件(I)及び要件(II)からなる群から選ばれる少なくとも1つの要件を満たし、遷移金属を含まない低分子化合物(以下、「化合物(T)」という。)について、説明する。
化合物(T)の分子量は、通常1×102~1×104であり、好ましくは2×102~5×103であり、より好ましくは3×102~3×103であり、更に好ましくは5×102~1.5×103である。
nT2は、本発明の発光素子の外部量子効率がより優れるので、好ましくは1以上5以下の整数であり、より好ましくは1又は2である。
「環内に二重結合を有さない窒素原子を含む」とは、環内に-N(-RN)-(式中、RNは水素原子又は置換基を表す。)又は式:
環内に-C(=O)-で表される基を含まない芳香族炭化水素環としては、例えば、ベンゼン環、ナフタレン環、インデン環、フルオレン環、フェナントレン環、ジヒドロフェナントレン環及びこれらの環が2個以上5個以下縮合した環が挙げられ、好ましくは、ベンゼン環、ナフタレン環、フルオレン環、スピロビフルオレン環、フェナントレン環又はジヒドロフェナントレン環であり、より好ましくは、ベンゼン環、フルオレン環又はスピロビフルオレン環であり、更に好ましくは、ベンゼン環又はフルオレン環であり、これらの環は置換基を有していてもよい。
環内に=N-で表される基、-C(=O)-で表される基、-S(=O)-で表される基、及び、-S(=O)2-で表される基を含まない複素環としては、ピロール環、フラン環、チオフェン環、インドール環、ベンゾフラン環、ベンゾチオフェン環、カルバゾール環、ジベンゾフラン環、ジベンゾチオフェン環、ジベンゾシロール環、ジベンゾホスホール環、フェノキサジン環、フェノチアジン環、9,10-ジヒドロアクリジン環、5,10-ジヒドロフェナジン環、これらの環に環内に-C(=ZT1)-で表される基を含まない芳香族炭化水素環が1個以上5個以下縮合した環、及び、これらの環が2個以上5個以下縮合した環が挙げられ、好ましくは、カルバゾール環、ジベンゾフラン環、ジベンゾチオフェン環、フェノキサジン環、フェノチアジン環、9,10-ジヒドロアクリジン環又は5,10-ジヒドロフェナジン環であり、より好ましくは、カルバゾール環、ジベンゾフラン環又はジベンゾチオフェン環であり、これらの環は置換基を有していてもよい。
ArT1が有していてもよい置換基における1価の複素環基としては、ピリジル基、ピリミジニル基、トリアジニル基、キノリニル基、イソキノリニル基、ジベンゾフラニル基、ジベンゾチエニル基、カルバゾリル基、アザカルバゾリル基、ジアザカルバゾリル基、フェノキサジニル基又はフェノチアジニル基が好ましく、ピリジル基、ピリミジニル基、トリアジニル基、ジベンゾフラニル基、ジベンゾチエニル基又はカルバゾリル基がより好ましく、ジベンゾフラニル基、ジベンゾチエニル基又はカルバゾリル基が更に好ましく、これらの基は置換基を有していてもよい。
ArT1が有していてもよい置換基における置換アミノ基において、アミノ基が有する置換基としては、アリール基又は1価の複素環基が好ましく、アリール基がより好ましく、これらの基は更に置換基を有していてもよい。アミノ基が有する置換基におけるアリール基の例及び好ましい範囲は、ArT1が有していてもよい置換基におけるアリール基の例及び好ましい範囲と同じである。アミノ基が有する置換基における1価の複素環基の例及び好ましい範囲は、ArT1が有していてもよい置換基における1価の複素環基の例及び好ましい範囲と同じである。
即ち、1価のドナー型複素環基は、式(T1-1)で表される基であることが好ましい。
環RT1及び環RT2が有していてもよい置換基の例及び好ましい範囲は、ArT1が有していてもよい置換基の例及び好ましい範囲と同じである。
XT2及びXT3のうち、少なくとも一方は単結合であることが好ましく、XT3が単結合であることがより好ましい。
XT2及びXT3のうち、少なくとも一方が単結合である場合、もう一方は酸素原子、硫黄原子、-N(RXT2)-で表される基、又は、-C(RXT2')2-で表される基であることが好ましく、-N(RXT2)-で表される基、又は、-C(RXT2')2-で表される基であることがより好ましい。
RXT2'の例及び好ましい範囲は、RXT1'の例及び好ましい範囲と同じである。
RXT2及びRXT2'が有していてもよい置換基の例及び好ましい範囲は、RXT1及びRXT1'が有していてもよい置換基の例及び好ましい範囲と同じである。
RT1、RT2、RT3、RT4、RT5、RT6、RT7、RT8、RT9、RT10、RT11及びRT12が有していてもよい置換基の例及び好ましい範囲は、ArT1が有していてもよい置換基が更に有していてもよい置換基の例及び好ましい範囲と同じである。
LT1で表される2価の複素環基としては、好ましくは、式(AA-1)~式(AA-6)、式(AA-10)~式(AA-15)又は式(AA-18)~式(AA-22)で表される基であり、より好ましくは、式(AA-1)~式(AA-4)、式(AA-10)~式(AA-15)である。
RT1'におけるアリール基及び1価の複素環基の例及び好ましい範囲は、それぞれ、ArT1が有していてもよい置換基におけるアリール基及び1価の複素環基の例及び好ましい範囲と同じである。
RT1'が有していてもよい置換基の例及び好ましい範囲は、ArT1が有していてもよい置換基が更に有していてもよい置換基の例及び好ましい範囲と同じである。
ArT2で表される芳香族炭化水素基は、本発明の発光素子の外部量子効率がより優れるので、好ましくは、環内に-C(=O)-で表される基を含む芳香族炭化水素基、又は、電子求引性基を有する芳香族炭化水素基であり、これらの基は置換基を有していてもよい。
環内に-C(=O)-で表される基、-S(=O)-で表される基、-S(=O)2-で表される基及び=N-で表される基からなる群から選ばれる少なくとも1つの基を含む縮合環の複素環基において、環内に含まれる-C(=O)-で表される基、-S(=O)-で表される基、-S(=O)2-で表される基及び=N-で表される基の合計の個数は、通常、1個以上10個以下であり、好ましくは1~5個であり、より好ましくは1~3個であり、更に好ましくは、1個である。
TX1は、酸素原子、硫黄原子又は-N(R1T)-で表される基を表す。
TX2は、=N-で表される基又は=C(R1T)-で表される基を表す。
TX3は、-C(=O)-で表される基、-S(=O)-で表される基又は-S(=O)2-で表される基を表す。
TX4は、酸素原子、硫黄原子、-N(R1T)-で表される基、-C(=O)-で表される基、-S(=O)-で表される基又は-S(=O)2-で表される基を表す。
R1T及びR1T'は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価のドナー型複素環基以外の1価の複素環基、電子求引性基又は式(1T’)で表される基を表し、これらの基は置換基を有していてもよい。
複数存在するR1Tは、同一でも異なっていてもよい。但し、複数存在するR1Tのうち、少なくとも1個は式(1T’)で表される基である。
複数存在するR1T'は、同一でも異なっていてもよい。但し、複数存在するR1T'のうち、少なくとも1個は式(1T’)で表される基であり、且つ、少なくとも1個は電子求引性基である。]
TX3は、好ましくは、-C(=O)-で表される基又は-S(=O)2-で表される基であり、より好ましくは-S(=O)2-で表される基である。
TX4は、好ましくは、酸素原子、硫黄原子、-N(R1T)-で表される基、-C(=O)-で表される基又は-S(=O)2-で表される基であり、より好ましくは酸素原子、硫黄原子又は-N(R1T)-で表される基であり、更に好ましくは酸素原子である。
複数存在するR1T'のうち、1~5個のR1T'は、式(1T’)で表される基であることが好ましく、1又は2個のR1T'は、式(1T’)で表される基であることがより好ましくい。
第1の有機層は、化合物(T)と、燐光発光性遷移金属錯体と、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、蛍光発光性化合物及び酸化防止剤からなる群から選ばれる少なくとも1種とを含む組成物(以下、「第1の組成物」ともいう。)を含有する層であってもよい。但し、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料及び蛍光発光性化合物と、化合物(T)とは異なる。
正孔輸送材料は、低分子化合物と高分子化合物とに分類され、好ましくは高分子化合物である。正孔輸送材料は、架橋基を有していてもよい。
正孔輸送材料は、一種単独で用いても二種以上を併用してもよい。
電子輸送材料は、低分子化合物と高分子化合物とに分類される。電子輸送材料は、架橋基を有していてもよい。
電子輸送材料は、一種単独で用いても二種以上を併用してもよい。
正孔注入材料及び電子注入材料は、各々、低分子化合物と高分子化合物とに分類される。正孔注入材料及び電子注入材料は、架橋基を有していてもよい。
電子注入材料及び正孔注入材料は、各々、一種単独で用いても二種以上を併用してもよい。
正孔注入材料又は電子注入材料が導電性高分子を含む場合、導電性高分子の電気伝導度は、好ましくは、1×10-5S/cm~1×103S/cmである。導電性高分子の電気伝導度をかかる範囲とするために、導電性高分子に適量のイオンをドープすることができる。
蛍光発光性化合物は、低分子化合物と高分子化合物とに分類される。蛍光発光性化合物は、架橋基を有していてもよい。
酸化防止剤は、化合物(T)及び燐光発光性遷移金属錯体と同じ溶媒に可溶であり、発光及び電荷輸送を阻害しない化合物であればよく、例えば、フェノール系酸化防止剤、リン系酸化防止剤が挙げられる。
酸化防止剤は、一種単独で用いても二種以上を併用してもよい。
化合物(T)と、燐光発光性遷移金属錯体と、溶媒とを含有する組成物(以下、「第1のインク」ともいう。)は、スピンコート法、キャスティング法、マイクログラビアコート法、グラビアコート法、バーコート法、ロールコート法、ワイヤーバーコート法、ディップコート法、スプレーコート法、スクリーン印刷法、フレキソ印刷法、オフセット印刷法、インクジェット印刷法、キャピラリ-コート法、ノズルコート法等の塗布法に好適に使用することができる。
第2の有機層は、架橋基を有する構成単位を含む高分子化合物(以下、「第2の有機層の高分子化合物」ともいう。)の架橋体を含有する層である。
第2の有機層の高分子化合物の最低三重項励起状態のエネルギー準位は、本発明の発光素子の外部量子効率がより優れるので、好ましくは2.34eV以上であり、より好ましくは2.36eV以上である。
本発明の発光素子の外部量子効率がより優れ、且つ、第2の有機層の高分子化合物の安定性が優れるので、第2の有機層の高分子化合物の最低三重項励起状態のエネルギー準位は、好ましくは2.30eV以上4.00eV以下であり、より好ましくは2.34eV以上3.00eV以下であり、更に好ましくは2.36eV以上2.70eV以下である。
計算科学的手法では、量子化学計算プログラムとしてGaussian09を用いて、B3LYPレベルの密度汎関数法により、モノマー単位の2量体の基底状態を構造最適化し、その際、基底関数としては、6-31G*を用いる。そして、B3LYPレベルの時間依存密度汎関数法により、高分子化合物の最低三重項励起状態のエネルギー準位を算出する。但し、6-31G*が使用できない原子を含む場合は、この原子に対してはLANL2DZを用いる。高分子化合物が1種のモノマー単位のみからなる場合、該モノマー単位の2量体について最低励起三重項エネルギーを算出し、該高分子化合物の最低励起三重項エネルギーとする。高分子化合物が2種以上のモノマー単位からなる場合、モル比率で1%以上含まれるモノマー単位の重合上生じ得る全ての2量体について最低励起三重項エネルギーを算出し、その中で最小の値を、該高分子化合物の最低励起三重項エネルギーとする。
nAは、本発明の発光素子の外部量子効率がより優れるので、好ましくは0~3の整数であり、より好ましくは0~2の整数であり、更に好ましくは1である。
Ar3で表される芳香族炭化水素基のn個の置換基を除いたアリーレン基部分の例及び好ましい範囲は、後述するArY1で表されるアリーレン基の例及び好ましい範囲と同じである。
Ar3で表される複素環基のn個の置換基を除いた2価の複素環基部分の例及び好ましい範囲は、後述するArY1で表される2価の複素環基の例及び好ましい範囲と同じである。
LAで表されるアルキレン基及びシクロアルキレン基は、置換基を有していてもよく、例えば、メチレン基、エチレン基、プロピレン基、ブチレン基、ヘキシレン基、シクロヘキシレン基、オクチレン基、及び、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、1価の複素環基、フッ素原子等で置換された基が挙げられる。
式(2)で表される構成単位は、第2の有機層の高分子化合物中に、1種のみ含まれていてもよく、2種以上含まれていてもよい。
mAは、本発明の発光素子の外部量子効率がより優れるので、好ましくは0~3の整数であり、より好ましくは0~2の整数であり、更に好ましくは0又は1であり、特に好ましくは0である。
式(2)で表される構成単位としては、例えば、式(2-1)~式(2-30)で表される構成単位が挙げられ、式(2')で表される構成単位としては、例えば、式(2'-1)~式(2'-9)で表される構成単位が挙げられる。これらの中でも、第2の有機層の高分子化合物の架橋性が優れるので、好ましくは式(2-1)~式(2-30)で表される構成単位であり、より好ましくは式(2-1)~式(2-15)、式(2-19)、式(2-20)、式(2-23)、式(2-25)又は式(2-30)で表される構成単位であり、更に好ましくは式(2-1)~式(2-9)又は式(2-30)で表される構成単位である。
第2の有機層の高分子化合物は、本発明の発光素子の外部量子効率がより優れるので、更に、式(Y)で表される構成単位を含むことが好ましい。
第2の有機層の高分子化合物は、正孔輸送性が優れるので、更に、式(X)で表される構成単位を含むことが好ましい。
第2の有機層の高分子化合物は、正孔輸送性が優れ、且つ、本発明の発光素子の外部量子効率がより優れるので、更に、式(X)で表される構成単位及び式(Y)で表される構成単位を含むことが好ましい。
ArY1で表される、少なくとも1種のアリーレン基と少なくとも1種の2価の複素環基とが直接結合した2価の基は、本発明の発光素子の外部量子効率がより優れ、且つ、第2の有機層の高分子化合物の電子輸送性が優れるので、好ましくは式(Y-4)~式(Y-7)のいずれかで表される基である。
ArY1で表される2価の複素環基は、本発明の発光素子の外部量子効率がより優れ、且つ、第2の有機層の高分子化合物の正孔輸送性が優れるので、好ましくは式(Y-8)~式(Y-10)のいずれかで表される基であり、より好ましくは式(Y-10)で表される基である。
nY1は、1以上4以下の整数を表す。
RY11は、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。RY11が複数存在する場合、それらは同一でも異なっていてもよく、隣接するRY11同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。]
RY11は、前記と同じ意味を表す。
RY1は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY1は、同一でも異なっていてもよく、隣接するRY1同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
隣接するRY1とRY11とは、互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。]
隣接するRY1とRY11とは互いに結合して、それぞれが結合する炭素原子と共に環を形成していないことが好ましい。
nY2は、1以上6以下の整数を表す。
RY11は、前記と同じ意味を表す。
XY1は、-C(RY2)2-、-C(RY2)=C(RY2)-又は-C(RY2)2-C(RY2)2-で表される基を表す。RY2は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY2は、同一でも異なっていてもよく、RY2同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。]
RY1は、前記と同じ意味を表す。
RY3は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。]
式(Y-6)で表される基は、式(Y-6')で表される基であることが好ましい。
RY1は、前記を同じ意味を表す。
RY4は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。]
aX1及びaX2は、それぞれ独立に、0以上の整数を表す。
ArX1及びArX3は、それぞれ独立に、アリーレン基又は2価の複素環基を表し、これらの基は置換基を有していてもよい。
ArX2及びArX4は、それぞれ独立に、アリーレン基、2価の複素環基、又は、少なくとも1種のアリーレン基と少なくとも1種の2価の複素環基とが直接結合した2価の基を表し、これらの基は置換基を有していてもよい。ArX2及びArX4が複数存在する場合、それらは同一でも異なっていてもよい。
RX1、RX2及びRX3は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。RX2及びRX3が複数存在する場合、それらは同一でも異なっていてもよい。]
aX2は、本発明の発光素子の外部量子効率がより優れるので、好ましくは2以下であり、より好ましくは0又は1であり、更に好ましくは0である。
第2の有機層の高分子化合物は、ケミカルレビュー(Chem. Rev.),第109巻,897-1091頁(2009年)等に記載の公知の重合方法を用いて製造することができ、Suzuki反応、Yamamoto反応、Buchwald反応、Stille反応、Negishi反応及びKumada反応等の遷移金属触媒を用いるカップリング反応により重合させる方法が例示される。
第2の有機層は、第2の有機層の高分子化合物の架橋体と、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、発光材料及び酸化防止剤からなる群から選ばれる少なくとも1種の材料とを含む組成物(以下、「第2の組成物」ともいう。)を含有する層であってもよい。
本発明の発光素子は、陽極、陰極、第1の有機層及び第2の有機層以外の層を有していてもよい。
本発明の発光素子において、第1の有機層は、通常、発光層(以下、「第1の発光層」と言う。)である。
本発明の発光素子において、第2の有機層は、通常、正孔輸送層、第2の発光層又は電子輸送層であり、好ましくは正孔輸送層又は第2の発光層であり、より好ましくは正孔輸送層である。
本発明の発光素子において、第2の有機層は、本発明の発光素子の外部量子効率がより優れるので、陽極及び第1の有機層の間に設けられた層であることが好ましく、陽極及び第1の有機層の間に設けられた正孔輸送層又は第2の発光層であることがより好ましく、陽極及び第1の有機層の間に設けられた正孔輸送層であることが更に好ましい。
(D2)陽極/正孔輸送層(第2の有機層)/第1の発光層(第1の有機層)/陰極
(D3)陽極/正孔注入層/第2の発光層(第2の有機層)/第1の発光層(第1の有機層)/陰極
(D4)陽極/正孔注入層/第2の発光層(第2の有機層)/第1の発光層(第1の有機層)/電子輸送層/陰極
(D5)陽極/正孔注入層/第2の発光層(第2の有機層)/第1の発光層(第1の有機層)/電子注入層/陰極
(D6)陽極/正孔注入層/第2の発光層(第2の有機層)/第1の発光層(第1の有機層)/電子輸送層/電子注入層/陰極
(D7)陽極/正孔注入層/正孔輸送層(第2の有機層)/第1の発光層(第1の有機層)/陰極
(D8)陽極/正孔注入層/正孔輸送層(第2の有機層)/第1の発光層(第1の有機層)/電子輸送層/陰極
(D9)陽極/正孔注入層/正孔輸送層(第2の有機層)/第1の発光層(第1の有機層)/電子注入層/陰極
(D10)陽極/正孔注入層/正孔輸送層(第2の有機層)/第1の発光層(第1の有機層)/電子輸送層/電子注入層/陰極
(D11)陽極/正孔注入層/正孔輸送層/第2の発光層(第2の有機層)/第1の発光層(第1の有機層)/電子輸送層/電子注入層/陰極
(D12)陽極/正孔注入層/正孔輸送層(第2の有機層)/第1の発光層(第1の有機層)/第2の発光層/電子輸送層/電子注入層/陰極
(D13)陽極/正孔注入層/正孔輸送層/第1の発光層(第1の有機層)/第2の発光層(第2の有機層)/電子輸送層/電子注入層/陰極
(D14)陽極/正孔注入層/正孔輸送層/第1の発光層(第1の有機層)/電子輸送層(第2の有機層)/電子注入層/陰極
(D15)陽極/正孔注入層/正孔輸送層(第2の有機層)/第2の発光層/第1の発光層(第1の有機層)/電子輸送層/電子注入層/陰極
陽極、正孔注入層、正孔輸送層、第2の発光層、電子輸送層、電子注入層及び陰極が複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。
第2の発光層は、通常、第2の有機層又は発光材料を含有する層であり、好ましくは、発光材料を含有する層である。第2の発光層が発光材料を含有する層である場合、第2の発光層に含有される発光材料としては、例えば、前述の第2の組成物が含有していてもよい発光材料が挙げられる。第2の発光層に含有される発光材料は、1種単独で含有されていても、2種以上が含有されていてもよい。
本発明の発光素子が第2の発光層を有し、且つ、後述の正孔輸送層及び後述の電子輸送層が第2の有機層ではない場合、第2の発光層は第2の有機層であることが好ましい。
正孔輸送層は、通常、第2の有機層又は正孔輸送材料を含有する層であり、好ましくは、第2の有機層である。正孔輸送層が正孔輸送材料を含有する層である場合、正孔輸送材料としては、例えば、前述の第1の組成物が含有していてもよい正孔輸送材料が挙げられる。正孔輸送層に含有される正孔輸送材料は、1種単独で含有されていても、2種以上が含有されていてもよい。
本発明の発光素子が正孔輸送層を有し、且つ、前述の第2の発光層及び後述の電子輸送層が第2の有機層ではない場合、正孔輸送層は第2の有機層であることが好ましい。
電子輸送層は、通常、第2の有機層又は電子輸送材料を含有する層であり、好ましくは、電子輸送材料を含有する層である。電子輸送層が電子輸送材料を含有する層である場合、電子輸送層に含有される電子輸送材料としては、例えば、前述の第1の組成物が含有していてもよい電子輸送材料が挙げられる。電子輸送層に含有される電子輸送材料は、1種単独で含有されていても、2種以上が含有されていてもよい。
本発明の発光素子が電子輸送層を有し、且つ、前述の第2の発光層及び前述の正孔輸送層が第2の有機層ではない場合、電子輸送層は第2の有機層であることが好ましい。
正孔注入層は、正孔注入材料を含有する層である。正孔注入層に含有される正孔注入材料としては、例えば、前述の第1の組成物が含有していてもよい正孔注入材料が挙げられる。正孔注入層に含有される正孔注入材料は、1種単独で含有されていても、2種以上が含有されていてもよい。
電子注入層は、電子注入材料を含有する層である。電子注入層に含有される電子注入材料としては、例えば、前述の第1の組成物が含有していてもよい電子注入材料が挙げられる。電子注入層に含有される電子注入材料は、1種単独で含有されていても、2種以上が含有されていてもよい。
発光素子における基板は、電極を形成することができ、かつ、有機層を形成する際に化学的に変化しない基板であればよく、例えば、ガラス、プラスチック、シリコン等の材料からなる基板である。不透明な基板を使用する場合には、基板から最も遠くにある電極が透明又は半透明であることが好ましい。
陽極及び陰極の形成方法としては、例えば、真空蒸着法、スパッタリング法、イオンプレーティング法、メッキ法及びラミネート法が挙げられる。
本発明の発光素子において、第1の発光層、第2の発光層、正孔輸送層、電子輸送層、正孔注入層、電子注入層等の各層の形成方法としては、低分子化合物を用いる場合、例えば、粉末からの真空蒸着法、溶液又は溶融状態からの成膜による方法が挙げられ、高分子化合物を用いる場合、例えば、溶液又は溶融状態からの成膜による方法が挙げられる。
第1の発光層、第2の発光層、正孔輸送層、電子輸送層、正孔注入層及び電子注入層は、第1のインク、第2のインク、並びに、上述した発光材料、正孔輸送材料、電子輸送材料、正孔注入材料及び電子注入材料をそれぞれ含有するインクを用いて、スピンコート法、インクジェット印刷法等の塗布法により形成することができる。
発光素子を用いて面状の発光を得るためには、面状の陽極と陰極が重なり合うように配置すればよい。パターン状の発光を得るためには、面状の発光素子の表面にパターン状の窓を設けたマスクを設置する方法、非発光部にしたい層を極端に厚く形成し実質的に非発光とする方法、陽極若しくは陰極、又は両方の電極をパターン状に形成する方法がある。これらのいずれかの方法でパターンを形成し、いくつかの電極を独立にON/OFFできるように配置することにより、数字、文字等を表示できるセグメントタイプの表示装置が得られる。ドットマトリックス表示装置とするためには、陽極と陰極を共にストライプ状に形成して直交するように配置すればよい。複数の種類の発光色の異なる高分子化合物を塗り分ける方法、カラーフィルター又は蛍光変換フィルターを用いる方法により、部分カラー表示、マルチカラー表示が可能となる。ドットマトリックス表示装置は、パッシブ駆動も可能であるし、TFT等と組み合わせてアクティブ駆動も可能である。これらの表示装置は、コンピュータ、テレビ、携帯端末等のディスプレイに用いることができる。面状の発光素子は、液晶表示装置のバックライト用の面状光源、又は、面状の照明用光源として好適に用いることができる。フレキシブルな基板を用いれば、曲面状の光源及び表示装置としても使用できる。
具体的には、高分子化合物を、キシレンに3.0質量%の濃度で溶解させた。得られたキシレン溶液を用いて、ガラス基板上にドロップキャスト法にて成膜した後、室温で真空乾燥を行うことにより、高分子化合物の膜を形成した。高分子化合物の膜が形成されたガラス基板を、酸素濃度5ppm未満の窒素雰囲気下としたガラス管中に投入した後、ガラス管を封管した。封管されたガラス管を、液体窒素で77Kに冷却し、測定試料とした。得られた測定試料に励起光(励起波長:325nm)を照射し、高分子化合物の燐光発光スペクトルを測定した。得られた高分子化合物の燐光発光スペクトルにおける、最も短波長の極大ピーク波長をエネルギーに換算した値を高分子化合物の最低三重項励起状態のエネルギー準位とした。
高分子化合物の燐光発光スペクトルの測定において、回転式のオプティカルチョッパーを用いた。励起光源にはHe-Cdレーザー(金門光波社製)を用いた。検出器には浜松ホトニクス社製マルチチャンネル分光器(商品名:PMA-12)を用いた。
化合物M1は、特開2010-189630号公報に記載の方法に従って合成した。
化合物M2は、特開2008-106241号公報に記載の方法に従って合成した。
化合物M3は、特開2010-215886号公報に記載の方法に従って合成した。
化合物M4は、国際公開第2002/045184号に記載の方法に準じて合成した。
化合物M5は、国際公開第2005/049546号に記載の方法に従って合成した。
化合物M6は、国際公開第2011/049241号に記載の方法に従って合成した。
化合物M7は、国際公開第2015/145871号に記載の方法に従って合成した。
化合物M8は、国際公開第2013/146806号に記載の方法に従って合成した。
化合物M9は、国際公開第2017/146083号に記載の方法に準じて合成した。
化合物M10は、特開2010-215886号公報に記載の方法に準じて合成した。
化合物M11は、国際公開第2016/031639号に記載の方法に従って合成した。
化合物M12は、特開2011-174062号公報に記載の方法に従って合成した。
化合物M13は、国際公開第2016/031639号に記載の方法に従って合成した。
化合物M14は、特開2011-174062号公報に記載の方法に従って合成した。
化合物M15は、国際公開第2013/191088号に記載の方法に従って合成した。
化合物M16は、国際公開第2013/191088号に記載の方法に従って合成した。
化合物M17は、国際公開第2016/031639号に記載の方法に従って合成した。
化合物M18は、国際公開第2013/146806号に記載の方法に従って合成した。
化合物M19は、国際公開第2016/031639号に記載の方法に従って合成した。
化合物M20は、国際公開第2002/045184号に記載の方法に準じて合成した。
(工程1)反応容器内を不活性ガス雰囲気とした後、化合物M1(0.995g)、化合物M4(0.736g)、化合物M2(0.106g)、化合物M3(0.0924g)、ジクロロビス〔トリス(2-メトキシフェニル)ホスフィン〕パラジウム(1.8mg)及びトルエン(50ml)を加え、105℃に加熱した。
(工程2)得られた反応液に、20質量%水酸化テトラエチルアンモニウム水溶液(6.6ml)を滴下し、5.5時間還流させた。
(工程3)その後、そこに、フェニルボロン酸(24.4mg)、20質量%水酸化テトラエチルアンモニウム水溶液(6.6ml)及びジクロロビス〔トリス(2-メトキシフェニル)ホスフィン〕パラジウム(1.8mg)を加え、14時間還流させた。
(工程4)その後、そこに、ジエチルジチアカルバミン酸ナトリウム水溶液を加え、80℃で2時間撹拌した。得られた反応液を冷却後、水で2回、3質量%酢酸水溶液で2回、水で2回洗浄し、得られた溶液をメタノールに滴下したところ、沈殿が生じた。得られた沈殿物をトルエンに溶解させ、アルミナカラム、シリカゲルカラムの順番で通液することにより精製した。得られた溶液をメタノールに滴下し、撹拌したところ、沈殿が生じた。
得られた沈殿物をろ取し、乾燥させることにより、高分子化合物HTL-1を0.91g得た。高分子化合物HTL-1のMnは5.2×104であり、Mwは2.5×105であった。
高分子化合物HTL-1の最低三重項励起状態のエネルギー準位は、2.45eVであった。
高分子化合物HTL-2は、化合物M1、化合物M5、及び、化合物M6を用いて、国際公開第2013/146806号に記載の方法に従って合成した。高分子化合物HTL-2のMnは1.9×104であり、Mwは9.9×104であった。
高分子化合物HTL-2は、仕込み原料の量から求めた理論値では、化合物M1から誘導される構成単位と、化合物M5から誘導される構成単位と、化合物M6から誘導される構成単位とが、50:42.5:7.5のモル比で構成された共重合体である。
高分子化合物HTL-2の最低三重項励起状態のエネルギー準位は、2.33eVであった。
高分子化合物HTL-3は、化合物M7、化合物M8、及び、化合物M9を用いて、国際公開第2015/145871号に記載の方法に準じて合成した。高分子化合物HTL-3のMnは2.8×104であり、Mwは1.1×105であった。
高分子化合物HTL-3は、仕込み原料の量から求めた理論値では、化合物M7から誘導される構成単位と、化合物M8から誘導される構成単位と、化合物M9から誘導される構成単位とが、40:10:50のモル比で構成された共重合体である。
高分子化合物HTL-3の最低三重項励起状態のエネルギー準位は、2.69eVであった。
高分子化合物HTL-4は、化合物M1、化合物M10、化合物M2、及び、化合物M3を用いて、国際公開第2016/031639号に記載の方法に準じて合成した。高分子化合物HTL-4のMnは2.4×104であり、Mwは1.7×105であった。
高分子化合物HTL-4は、仕込み原料の量から求めた理論値では、化合物M1から誘導される構成単位と、化合物M10から誘導される構成単位と、化合物M2から誘導される構成単位と、化合物M3から誘導される構成単位とが、50:40:5:5のモル比で構成された共重合体である。
高分子化合物HTL-4の最低三重項励起状態のエネルギー準位は、2.49eVであった。
高分子化合物HTL-5は、化合物M11、化合物M12、化合物M2、及び、化合物M3を用いて、国際公開第2016/031639号に記載の方法に従って合成した。高分子化合物HTL-5のMnは5.3×104であり、Mwは2.0×105であった。
高分子化合物HTL-5は、仕込み原料の量から求めた理論値では、化合物M11から誘導される構成単位と、化合物M12から誘導される構成単位と、化合物M2から誘導される構成単位と、化合物M3から誘導される構成単位とが、50:40:5:5のモル比で構成された共重合体である。
高分子化合物HTL-5の最低三重項励起状態のエネルギー準位は、2.37eVであった。
高分子化合物HTL-6は、化合物M13、化合物M12、化合物M2、及び、化合物M3を用いて、国際公開第2016/031639号に記載の方法に従って合成した。高分子化合物HTL-6のMnは4.2×104であり、Mwは1.2×105であった。
高分子化合物HTL-6は、仕込み原料の量から求めた理論値では、化合物M13から誘導される構成単位と、化合物M12から誘導される構成単位と、化合物M2から誘導される構成単位と、化合物M3から誘導される構成単位とが、50:40:5:5のモル比で構成された共重合体である。
高分子化合物HTL-6の最低三重項励起状態のエネルギー準位は、2.36eVであった。
高分子化合物HTL-7は、化合物M14、化合物M15、化合物M16、及び、化合物M17を用いて、国際公開第2016/031639号に記載の方法に従って合成した。高分子化合物HTL-7のMnは5.1×104であり、Mwは2.0×105であった。
高分子化合物HTL-7は、仕込み原料の量から求めた理論値では、化合物M14から誘導される構成単位と、化合物M15から誘導される構成単位と、化合物M16から誘導される構成単位と、化合物M17から誘導される構成単位とが、40:5:5:50のモル比で構成された共重合体である。
高分子化合物HTL-7の最低三重項励起状態のエネルギー準位は、2.33eVであった。
高分子化合物HTL-8は、化合物M7、化合物M8、及び、化合物M5を用いて、国際公開第2015/145871号に記載の方法に従って合成した。高分子化合物HTL-8のMnは2.3×104であり、Mwは1.2×105であった。
高分子化合物HTL-8は、仕込み原料の量から求めた理論値では、化合物M7から誘導される構成単位と、化合物M8から誘導される構成単位と、化合物M5から誘導される構成単位とが、45:5:50のモル比で構成された共重合体である。
高分子化合物HTL-8の最低三重項励起状態のエネルギー準位は、2.33eVであった。
高分子化合物HTL-9は、化合物M18、化合物M8、及び、化合物M4を用いて、国際公開第2016/125560号に記載の方法に従って合成した。高分子化合物HTL-5のMnは3.6×104であり、Mwは2.0×105であった。
高分子化合物HTL-9は、仕込み原料の量から求めた理論値では、化合物M18から誘導される構成単位と、化合物M8から誘導される構成単位と、化合物M4から誘導される構成単位とが、40:10:50のモル比で構成されてなる共重合体である。
高分子化合物HTL-9の最低三重項励起状態のエネルギー準位は、2.46eVであった。
高分子化合物HTL-C1は、化合物M19、化合物M4、及び、化合物M6を用いて、国際公開第2016/031639号に記載の方法に準じて合成した。高分子化合物HTL-C1のMnは1.4×104であり、Mwは2.7×104であった。
高分子化合物HTL-C1は、仕込み原料の量から求めた理論値では、化合物M19から誘導される構成単位と、化合物M4から誘導される構成単位と、化合物M6から誘導される構成単位とが、50:42.5:7.5のモル比で構成された共重合体である。
高分子化合物HTL-C1の最低三重項励起状態のエネルギー準位は、2.28eVであった。
高分子化合物HTL-C2は、化合物M14、化合物M5、化合物M20及び化合物M3を用いて、特開2012-144722号公報に記載の方法に準じて合成した。高分子化合物HTL-C2のMnは5.0×104であり、Mwは2.5×105であった。
高分子化合物HTL-C2は、仕込み原料の量から求めた理論値では、化合物M14から誘導される構成単位と、化合物M5から誘導される構成単位と、化合物M20から誘導される構成単位と、化合物M3から誘導される構成単位とが、50:30:12.5:7.5のモル比で構成された共重合体である。
高分子化合物HTL-C2の最低三重項励起状態のエネルギー準位は、2.16eVであった。
金属錯体G1は、特開2013-237789号公報に記載の方法に従って合成した。
金属錯体G2は、国際公開第2009/131255号に記載の方法に従って合成した。
金属錯体G3は、国際公開第2011/032626号に記載の方法に準じて合成した。
金属錯体G4は、特開2014-224101号公報に記載の方法に準じて合成した。
金属錯体G5及びG6は、特開2014-224101号公報に記載の方法に従って合成した。
金属錯体R1は、特開2006-188673号公報に記載の方法に準じて合成した。
金属錯体R2は、特開2008-179617号公報に記載の方法に従って合成した。
金属錯体R3は、特開2011-105701号公報に記載の方法に従って合成した。
化合物H1は、国際公開第2010/136109号に記載の方法に準じて合成した。
化合物H2は、国際公開第2014/115743号に記載の方法に準じて合成した。
化合物H3は、特開2010-254676号公報に記載の方法に準じて合成した。
化合物H4は、国際公開第2011/070963号に記載の方法に準じて合成した。
化合物H5は、国際公開第2008/056746号に記載の方法に準じて合成した。
化合物H6は、Luminescense Technology社より購入した。
化合物H7は、国際公開第2006/114966号に記載の方法に準じて合成した。
化合物HC1、HC3及びHC4は、Luminescense Technology社より購入した。
化合物HC2は、特開2010-189630号公報に記載の方法に従って合成した。
化合物H2のΔESTの値は、0.063eVであった。
化合物H3のΔESTの値は、0.576eVであった。
化合物H4のΔESTの値は、0.096eVであった。
化合物H5のΔESTの値は、0.066eVであった。
化合物H6のΔESTの値は、0.156eVであった。
化合物H7のΔESTの値は、0.322eVであった。
化合物HC1のΔESTの値は、0.448eVであった。
化合物HC2のΔESTの値は、0.872eVであった。
化合物HC3のΔESTの値は、0.451eVであった。
化合物HC4のΔESTの値は、0.591eVであった。
(陽極及び正孔注入層の形成)
ガラス基板にスパッタ法により45nmの厚みでITO膜を付けることにより陽極を形成した。該陽極上に、ポリチオフェン・スルホン酸系の正孔注入剤であるAQ-1200(Plextronics社製)をスピンコート法により35nmの厚さで成膜し、大気雰囲気下において、ホットプレート上で170℃、15分間加熱することにより正孔注入層を形成した。
キシレンに高分子化合物HTL-1を0.6質量%の濃度で溶解させた。得られたキシレン溶液を用いて、正孔注入層の上にスピンコート法により20nmの厚さで成膜し、窒素ガス雰囲気下において、ホットプレート上で180℃、60分間加熱させることにより第2の有機層を形成した。この加熱により、高分子化合物HTL-1は、架橋体となった。
トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。得られたトルエン溶液を用いて、第2の有機層の上にスピンコート法により80nmの厚さで成膜し、窒素ガス雰囲気下において、130℃、10分間加熱させることにより第1の有機層を形成した。
第1の有機層を形成した基板を蒸着機内において、1.0×10-4Pa以下にまで減圧した後、陰極として、第1の有機層の上にフッ化ナトリウムを約4nm、次いで、フッ化ナトリウム層の上にアルミニウムを約80nm蒸着した。蒸着後、ガラス基板を用いて封止することにより、発光素子D1を作製した。
発光素子D1に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は10.0%、CIE色度座標(x,y)=(0.30,0.62)であった。電流密度が0.25mA/cm2における外部量子効率は10.3%、CIE色度座標(x,y)=(0.30,0.62)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-2」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「キシレンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を3.3質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D2を作製した。
発光素子D2に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は5.7%、CIE色度座標(x,y)=(0.33,0.61)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-C1」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子CD1を作製した。
発光素子CD1に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は1.0%、CIE色度座標(x,y)=(0.35,0.58)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を2質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物HC1及び金属錯体G1(化合物HC1/金属錯体G1=70質量%/30質量%)を2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子CD2を作製した。
発光素子CD2に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は1.4%、CIE色度座標(x,y)=(0.28,0.62)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-3」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H1及び金属錯体G2(化合物H1/金属錯体G2=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D3を作製した。
発光素子D3に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は18.0%、CIE色度座標(x,y)=(0.33,0.62)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-4」を用いた以外は、実施例D3と同様にして、発光素子D4を作製した。
発光素子D4に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は17.9%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-1」を用いた以外は、実施例D3と同様にして、発光素子D5を作製した。
発光素子D5に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は22.5%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-5」を用いた以外は、実施例D3と同様にして、発光素子D6を作製した。
発光素子D6に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は20.3%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-6」を用いた以外は、実施例D3と同様にして、発光素子D7を作製した。
発光素子D7に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は19.7%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-7」を用いた以外は、実施例D3と同様にして、発光素子D8を作製した。
発光素子D8に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は14.3%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-8」を用いた以外は、実施例D3と同様にして、発光素子D9を作製した。
発光素子D9に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は14.8%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-2」を用いた以外は、実施例D3と同様にして、発光素子D10を作製した。
発光素子D10に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は15.4%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D3の(第2の有機層の形成)における、「高分子化合物HTL-3」に代えて、「高分子化合物HTL-C2」を用いた以外は、実施例D3と同様にして、発光素子DCD3を作製した。
発光素子CD3に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は6.4%、CIE色度座標(x,y)=(0.32,0.64)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-2」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物HC2及び金属錯体G2(化合物HC2/金属錯体G2=70質量%/30質量%)を2.5質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子CD4を作製した。
発光素子CD4に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は3.3%、CIE色度座標(x,y)=(0.33,0.63)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物H1及び金属錯体G3(化合物H1/金属錯体G3=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D11を作製した。
発光素子D11に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は19.3%、CIE色度座標(x,y)=(0.33,0.63)であった。
実施例D11の(第1の有機層の形成)における、「化合物H1及び金属錯体G3(化合物H1/金属錯体G3=70質量%/30質量%)」に代えて、「化合物H1及び金属錯体G4(化合物H1/金属錯体G4=70質量%/30質量%)」を用いた以外は、実施例D1と同様にして、発光素子D12を作製した。
発光素子D12に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は20.8%、CIE色度座標(x,y)=(0.43,0.56)であった。
実施例D11の(第1の有機層の形成)における、「化合物H1及び金属錯体G3(化合物H1/金属錯体G3=70質量%/30質量%)」に代えて、「化合物H1及び金属錯体G5(化合物H1/金属錯体G5=70質量%/30質量%)」を用いた以外は、実施例D1と同様にして、発光素子D13を作製した。
発光素子D13に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は22.3%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D11の(第1の有機層の形成)における、「化合物H1及び金属錯体G3(化合物H1/金属錯体G3=70質量%/30質量%)」に代えて、「化合物H1及び金属錯体G6(化合物H1/金属錯体G6=70質量%/30質量%)」を用いた以外は、実施例D1と同様にして、発光素子D14を作製した。
発光素子D14に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は24.5%、CIE色度座標(x,y)=(0.30,0.64)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H2及び金属錯体G2(化合物H2/金属錯体G2=70質量%/30質量%)を3.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D15を作製した。
発光素子D15に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は14.2%、CIE色度座標(x,y)=(0.30,0.64)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H3及び金属錯体G2(化合物H3/金属錯体G2=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D16を作製した。
発光素子D16に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は7.3%、CIE色度座標(x,y)=(0.29,0.65)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物H4及び金属錯体G2(化合物H4/金属錯体G2=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D17を作製した。
発光素子D17に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は22.4%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物H5及び金属錯体G2(化合物H5/金属錯体G2=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D18を作製した。
発光素子D18に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は14.8%、CIE色度座標(x,y)=(0.31,0.63)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H6及び金属錯体G2(化合物H6/金属錯体G2=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D19を作製した。
発光素子D19に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は16.4%、CIE色度座標(x,y)=(0.32,0.63)であった。
実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物HC2及び金属錯体G3(化合物HC2/金属錯体G3=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子CD5を作製した。
発光素子CD5に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は1.3%、CIE色度座標(x,y)=(0.33,0.61)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-8」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物H5及び金属錯体G2(化合物H5/金属錯体G2=70質量%/30質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D20を作製した。
発光素子D20に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は13.0%、CIE色度座標(x,y)=(0.31,0.64)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-8」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H6及び金属錯体G2(化合物H6/金属錯体G2=70質量%/30質量%)を2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子D21を作製した。
発光素子D21に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は11.4%、CIE色度座標(x,y)=(0.32,0.64)であった。
実施例D1の(第2の有機層の形成)における、「高分子化合物HTL-1」に代えて、「高分子化合物HTL-8」を用い、更に、実施例D1の(第1の有機層の形成)における、「トルエンに、化合物H1及び金属錯体G1(化合物H1/金属錯体G1=70質量%/30質量%)を1質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物HC3及び金属錯体G2(化合物HC3/金属錯体G2=70質量%/30質量%)を2質量%の濃度で溶解させた。」とする以外は、実施例D1と同様にして、発光素子CD6を作製した。
発光素子CD6に電圧を印加することによりEL発光が観測された。電流密度が0.25mA/cm2における外部量子効率は5.0%、CIE色度座標(x,y)=(0.31,0.64)であった。
(陽極及び正孔注入層の形成)
ガラス基板にスパッタ法により45nmの厚みでITO膜を付けることにより陽極を形成した。該陽極上に、ポリチオフェン・スルホン酸系の正孔注入剤であるAQ-1200(Plextronics社製)をスピンコート法により65nmの厚さで成膜し、大気雰囲気下において、ホットプレート上で170℃、15分間加熱することにより正孔注入層を形成した。
キシレンに高分子化合物HTL-2を0.6質量%の濃度で溶解させた。得られたキシレン溶液を用いて、正孔注入層の上にスピンコート法により20nmの厚さで成膜し、窒素ガス雰囲気下において、ホットプレート上で180℃、60分間加熱させることにより第2の有機層を形成した。この加熱により、高分子化合物HTL-2は、架橋体となった。
キシレンに、化合物H1及び金属錯体R1(化合物H1/金属錯体R1=90重量%/10質量%)を3.3質量%の濃度で溶解させた。得られたキシレン溶液を用いて、第2の有機層の上にスピンコート法により80nmの厚さで成膜し、窒素ガス雰囲気下において、130℃、10分間加熱させることにより第1の有機層を形成した。
第1の有機層を形成した基板を蒸着機内において、1.0×10-4Pa以下にまで減圧した後、陰極として、第1の有機層の上にフッ化ナトリウムを約4nm、次いで、フッ化ナトリウム層の上にアルミニウムを約80nm蒸着した。蒸着後、ガラス基板を用いて封止することにより、発光素子D22を作製した。
発光素子D22に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は10.6%、CIE色度座標(x,y)=(0.67,0.33)であった。
実施例D22の(第2の有機層の形成)における、「高分子化合物HTL-2」に代えて、「高分子化合物HTL-9」を用いた以外は、実施例D22と同様にして、発光素子D23を作製した。
発光素子D23に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は12.3%、CIE色度座標(x,y)=(0.67,0.33)であった。
実施例D22の(第2の有機層の形成)における、「高分子化合物HTL-2」に代えて、「高分子化合物HTL-1」を用いた以外は、実施例D22と同様にして、発光素子D24を作製した。
発光素子D24に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は12.8%、CIE色度座標(x,y)=(0.67,0.33)であった。
実施例D22の(第2の有機層の形成)における、「高分子化合物HTL-2」に代えて、「高分子化合物HTL-1」を用い、更に、実施例D22の(第1の有機層の形成)における、「化合物H1及び金属錯体R1(化合物H1/金属錯体R1=90質量%/10質量%)」に代えて、「化合物H1及び金属錯体R2(化合物H1/金属錯体R2=90質量%/10質量%)」を用いた以外は、実施例D22と同様にして、発光素子D25を作製した。
発光素子D25に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は20.4%、CIE色度座標(x,y)=(0.61,0.39)であった。
実施例D22の(第2の有機層の形成)における、「高分子化合物HTL-2」に代えて、「高分子化合物HTL-1」を用い、更に、実施例D22の(第1の有機層の形成)における、「化合物H1及び金属錯体R1(化合物H1/金属錯体R1=90質量%/10質量%)」に代えて、「化合物H1及び金属錯体R3(化合物H1/金属錯体R3=90質量%/10質量%)」を用いた以外は、実施例D22と同様にして、発光素子D26を作製した。
発光素子D26に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は15.8%、CIE色度座標(x,y)=(0.65,0.35)であった。
実施例D22の(第2の有機層の形成)における、「高分子化合物HTL-2」に代えて、「高分子化合物HTL-1」を用い、更に、実施例D22の(第1の有機層の形成)における、「キシレンに、化合物H1及び金属錯体R1(化合物H1/金属錯体R1=90質量%/10質量%)を3.3質量%の濃度で溶解させた。」に代えて、「トルエンに、化合物H7及び金属錯体R1(化合物H7/金属錯体R1=90質量%/10質量%)を2.2質量%の濃度で溶解させた。」とする以外は、実施例D22と同様にして、発光素子D27を作製した。
発光素子D27に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は8.0%、CIE色度座標(x,y)=(0.67,0.33)であった。
実施例D22の(第1の有機層の形成)における、「キシレンに、化合物H1及び金属錯体R1(化合物H1/金属錯体R1=90質量%/10質量%)を3.3質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物HC4及び金属錯体R1(化合物HC4/金属錯体R1=90質量%/10質量%)を2.5質量%の濃度で溶解させた。」とする以外は、実施例D22と同様にして、発光素子CD7を作製した。
発光素子CD7に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は2.0%、CIE色度座標(x,y)=(0.67,0.33)であった。
実施例D22の(第1の有機層の形成)における、「キシレンに、化合物H1及び金属錯体R1(化合物H1/金属錯体R1=90質量%/10質量%)を3.3質量%の濃度で溶解させた。」に代えて、「クロロベンゼンに、化合物HC2及び金属錯体R1(化合物HC2/金属錯体R1=90質量%/10質量%)を2.5質量%の濃度で溶解させた。」とする以外は、実施例D22と同様にして、発光素子CD8を作製した。
発光素子CD8に電圧を印加することによりEL発光が観測された。電流密度が1mA/cm2における外部量子効率は0.9%、CIE色度座標(x,y)=(0.66,0.34)であった。
Claims (14)
- 陽極と、陰極と、陽極及び陰極の間に設けられた第1の有機層と、陽極及び陰極の間に設けられた第2の有機層とを有する発光素子であって、
第1の有機層が、燐光発光性遷移金属錯体と、要件(I)及び要件(II)からなる群から選ばれる少なくとも1つの要件を満たし、遷移金属を含まない低分子化合物とを含有する層であり、
第2の有機層が、架橋基を有する構成単位を含む高分子化合物の架橋体を含有する層であり、該高分子化合物の最低三重項励起状態のエネルギー準位が2.30eV以上である、発光素子。
(I)最低三重項励起状態のエネルギー準位と最低一重項励起状態のエネルギー準位との差の絶対値が0.25eV未満である。
(II)式(T-1)で表される。
nT1は、0以上5以下の整数を表す。nT1が複数存在する場合、それらは同一でも異なっていてもよい。
nT2は、1以上10以下の整数を表す。
ArT1は、置換アミノ基又は1価の複素環基を表し、該1価の複素環基は、環内に二重結合を有さない窒素原子を含み、且つ、環内に=N-で表される基、-C(=O)-で表される基、-S(=O)-で表される基、及び、-S(=O)2-で表される基を含まない1価の複素環基であり、これらの基は置換基を有していてもよい。ArT1が複数存在する場合、それらは同一でも異なっていてもよい。
LT1は、アルキレン基、シクロアルキレン基、アリーレン基、2価の複素環基、-NRT1'-で表される基、酸素原子又は硫黄原子を表し、これらの基は置換基を有していてもよい。RT1'は、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。LT1が複数存在する場合、それらは同一でも異なっていてもよい。
ArT2は、芳香族炭化水素基又は複素環基を表し、これらの基は置換基を有していてもよい。
但し、ArT1のすべてが置換アミノ基又は式(T1-1A)で表される基である場合、ArT2は、環内に=N-で表される基を2個以上含む単環の複素環基、環内に-C(=O)-で表される基、-S(=O)-で表される基、-S(=O)2-で表される基及び=N-で表される基からなる群から選ばれる少なくとも1つの基を含む縮合環の複素環基、環内に-C(=O)-で表される基を含む芳香族炭化水素基、又は、電子求引性基を有する芳香族炭化水素基であり、これらの基は置換基を有していてもよい。]
XT1は、単結合、酸素原子、硫黄原子、-N(RXT1)-で表される基、又は、-C(RXT1')2-で表される基を表す。RXT1及びRXT1'は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。複数存在するRXT1'は、同一でも異なっていてもよく、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。
RT1、RT2、RT3、RT4、RT5、RT6、RT7及びRT8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。] - 前記高分子化合物の最低三重項励起状態のエネルギー準位が2.34eV以上である、請求項1に記載の発光素子。
- 前記架橋基を有する構成単位が、式(2)又は式(2’)で表される構成単位である、請求項3に記載の発光素子。
nAは0~5の整数を表し、nは1又は2を表す。nAが複数存在する場合、それらは同一でも異なっていてもよい。
Ar3は、芳香族炭化水素基又は複素環基を表し、これらの基は置換基を有していてもよい。
LAは、アルキレン基、シクロアルキレン基、アリーレン基、2価の複素環基、-NR’-で表される基、酸素原子又は硫黄原子を表し、これらの基は置換基を有していてもよい。R’は、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。LAが複数存在する場合、それらは同一でも異なっていてもよい。
Xは、前記架橋基A群から選ばれる架橋基を表す。Xが複数存在する場合、それらは同一でも異なっていてもよい。]
mAは0~5の整数を表し、mは1~4の整数を表し、cは0又は1を表す。mAが複数存在する場合、それらは同一でも異なっていてもよい。
Ar5は、芳香族炭化水素基、複素環基、又は、少なくとも1種の芳香族炭化水素環と少なくとも1種の複素環とが直接結合した基を表し、これらの基は置換基を有していてもよい。
Ar4及びAr6は、それぞれ独立に、アリーレン基又は2価の複素環基を表し、これらの基は置換基を有していてもよい。
Ar4、Ar5及びAr6はそれぞれ、該基が結合している窒素原子に結合している該基以外の基と、直接結合して、又は、酸素原子若しくは硫黄原子を介して結合して、環を形成していてもよい。
KAは、アルキレン基、シクロアルキレン基、アリーレン基、2価の複素環基、-NR’-で表される基、酸素原子又は硫黄原子を表し、これらの基は置換基を有していてもよい。R’は、前記と同じ意味を表す。KAが複数存在する場合、それらは同一でも異なっていてもよい。
X’は、前記架橋基A群から選ばれる架橋基、水素原子、アルキル基、シクロアルキル基、アリール基又は1価の複素環基を表し、これらの基は置換基を有していてもよい。X’が複数存在する場合、それらは同一でも異なっていてもよい。但し、少なくとも1つのX’は、前記架橋基A群から選ばれる架橋基である。] - 前記式(T1-1)で表される基が、式(T1-1A)、式(T1-1B)、式(T1-1C)又は式(T1-1D)で表される基である、請求項5に記載の発光素子。
XT1は、前記と同じ意味を表す。
XT2及びXT3は、それぞれ独立に、単結合、酸素原子、硫黄原子、-N(RXT2)-で表される基、又は、-C(RXT2')2-で表される基を表す。RXT2及びRXT2'は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。複数存在するRXT2'は、同一でも異なっていてもよく、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。
RT1、RT2、RT3、RT4、RT5、RT6、RT7、RT8、RT9、RT10、RT11及びRT12は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基、ハロゲン原子又はシアノ基を表し、これらの基は置換基を有していてもよい。] - 前記ArT2が、環内に=N-で表される基を2個以上含む、置換基を有していてもよい単環の複素環基である、請求項1~6のいずれか一項に記載の発光素子。
- 前記遷移金属を含まない低分子化合物が、前記要件(I)及び前記要件(II)を満たす、請求項1~7のいずれか一項に記載の発光素子。
- 前記燐光発光性遷移金属錯体が、式(1)で表される金属錯体である、請求項1~8のいずれか一項に記載の発光素子。
Mは、ルテニウム原子、ロジウム原子、パラジウム原子、イリジウム原子又は白金原子を表す。
n1は1以上の整数を表し、n2は0以上の整数を表す。但し、Mがルテニウム原子、ロジウム原子又はイリジウム原子の場合、n1+n2は3であり、Mがパラジウム原子又は白金原子の場合、n1+n2は2である。
E1及びE2は、それぞれ独立に、炭素原子又は窒素原子を表す。但し、E1及びE2の少なくとも一方は炭素原子である。E1及びE2が複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。
環L1は、芳香族複素環を表し、この環は置換基を有していてもよい。該置換基が複数存在する場合、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。環L1が複数存在する場合、それらは同一でも異なっていてもよい。
環L2は、芳香族炭化水素環又は芳香族複素環を表し、これらの環は置換基を有していてもよい。該置換基が複数存在する場合、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。環L2が複数存在する場合、それらは同一でも異なっていてもよい。
環L1が有していてもよい置換基と、環L2が有していてもよい置換基とは、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。
A1-G1-A2は、アニオン性の2座配位子を表す。A1及びA2は、それぞれ独立に、炭素原子、酸素原子又は窒素原子を表し、これらの原子は環を構成する原子であってもよい。G1は、単結合、又は、A1及びA2とともに2座配位子を構成する原子団を表す。A1-G1-A2が複数存在する場合、それらは同一でも異なっていてもよい。] - 前記式(1)で表される金属錯体が、式(1-A)で表される金属錯体である、請求項9に記載の発光素子。
M、n1、n2、E1及びA1-G1-A2は、前記と同じ意味を表す。
環L1Aは、ピリジン環、ジアザベンゼン環、アザナフタレン環、ジアザナフタレン環、トリアゾール環又はジアゾール環を表し、これらの環は置換基を有していてもよい。該置換基が複数存在する場合、互いに結合して、それぞれが結合する原子とともに環を形成していてもよい。環L1Aが複数存在する場合、それらは同一でも異なっていてもよい。
E21A、E22A、E23A及びE24Aは、それぞれ独立に、窒素原子又は炭素原子を表す。E21A、E22A、E23A及びE24Aが複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。E21Aが窒素原子の場合、R21Aは存在しない。E22Aが窒素原子の場合、R22Aは存在しない。E23Aが窒素原子の場合、R23Aは存在しない。E24Aが窒素原子の場合、R24Aは存在しない。
R21A、R22A、R23A及びR24Aは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基又はハロゲン原子を表し、これらの基は置換基を有していてもよい。R21A、R22A、R23A及びR24Aが複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。R21AとR22A、R22AとR23A、R23AとR24A、及び、環L1Aが有していてもよい置換基とR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。
環L2Aは、ベンゼン環、ピリジン環又はジアザベンゼン環を表す。] - 前記式(1-A)で表される金属錯体が、式(1-B1)、式(1-B2)、式(1-B3)、式(1-B4)又は式(1-B5)で表される金属錯体である、請求項10に記載の発光素子。
M、n1、n2、R21A、R22A、R23A、R24A及びA1-G1-A2は、前記と同じ意味を表す。
n11及びn12は、それぞれ独立に、1又は2を表す。但し、Mがルテニウム原子、ロジウム原子又はイリジウム原子の場合、n11+n12は3であり、Mがパラジウム原子又は白金原子の場合、n11+n12は2である。
R11B、R12B、R13B、R14B、R15B、R16B、R17B及びR18Bは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基、置換アミノ基又はハロゲン原子を表し、これらの基は置換基を有していてもよい。R11B、R12B、R13B、R14B、R15B、R16B、R17B及びR18Bが複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。
式(1-B1)中、R11BとR12B、R12BとR13B、R13BとR14B、及び、R11BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B2)中、R13BとR14B、R13BとR15B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R18BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B3)中、R11BとR12B、R12BとR13B、R13BとR14B、R11BとR21A、R13BとR15B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R18BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B4)中、R11BとR18B、R14BとR15B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R11BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。式(1-B5)中、R11BとR12B、R12BとR18B、R15BとR16B、R16BとR17B、R17BとR18B、及び、R11BとR21Aは、それぞれ結合して、それぞれが結合する原子とともに環を形成していてもよい。] - 前記第1の有機層が、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、蛍光発光性化合物及び酸化防止剤からなる群より選ばれる少なくとも1種を更に含有する、請求項1~11のいずれか一項に記載の発光素子。
- 前記第1の有機層と前記第2の有機層とが隣接している、請求項1~12のいずれか一項に記載の発光素子。
- 前記第2の有機層が、前記陽極及び前記第1の有機層の間に設けられた層である、請求項1~13のいずれか一項に記載の発光素子。
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022065100A1 (ja) | 2020-09-24 | 2022-03-31 | 住友化学株式会社 | 発光素子及び組成物 |
WO2022065102A1 (ja) | 2020-09-24 | 2022-03-31 | 住友化学株式会社 | 発光素子及び組成物 |
WO2022065099A1 (ja) | 2020-09-24 | 2022-03-31 | 住友化学株式会社 | 発光素子及び組成物 |
WO2022065098A1 (ja) | 2020-09-24 | 2022-03-31 | 住友化学株式会社 | 発光素子及び組成物 |
WO2022065101A1 (ja) | 2020-09-24 | 2022-03-31 | 住友化学株式会社 | 発光素子及び組成物 |
JP7405676B2 (ja) | 2020-03-31 | 2023-12-26 | 住友化学株式会社 | 発光素子及び組成物 |
Citations (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002045184A1 (en) | 2000-11-28 | 2002-06-06 | Avecia Limited | Field effect transistors and materials and methods for their manufacture |
JP2004530254A (ja) | 2001-02-20 | 2004-09-30 | アイシス イノベイシヨン リミテツド | 金属含有デンドリマー |
WO2005049546A1 (en) | 2003-11-14 | 2005-06-02 | Sumitomo Chemical Company, Limited | Halogenated bisdiarylaminopolycylic aromatic compounds and polymers thereof |
JP2006188673A (ja) | 2004-12-07 | 2006-07-20 | Sumitomo Chemical Co Ltd | 高分子材料およびそれを用いた素子 |
WO2006114966A1 (ja) | 2005-04-18 | 2006-11-02 | Konica Minolta Holdings, Inc. | 有機エレクトロルミネッセンス素子、表示装置及び照明装置 |
WO2006121811A1 (en) | 2005-05-06 | 2006-11-16 | Universal Display Corporation | Stability oled materials and devices with improved stability |
JP2007504272A (ja) | 2003-05-16 | 2007-03-01 | イシス イノベイション リミテッド | 有機燐光材料および有機オプトエレクトロニクス素子 |
WO2007063754A1 (ja) | 2005-12-01 | 2007-06-07 | Nippon Steel Chemical Co., Ltd. | 有機電界発光素子用化合物及び有機電界発光素子 |
JP2008106241A (ja) | 2006-09-25 | 2008-05-08 | Sumitomo Chemical Co Ltd | 高分子化合物及びそれを用いた高分子発光素子 |
WO2008056746A1 (fr) | 2006-11-09 | 2008-05-15 | Nippon Steel Chemical Co., Ltd. | Composé pour un dispositif électroluminescent organique et dispositif électroluminescent organique |
JP2008179617A (ja) | 2006-12-27 | 2008-08-07 | Sumitomo Chemical Co Ltd | 金属錯体、高分子化合物及びこれらを含む素子 |
JP2009227663A (ja) | 2008-02-25 | 2009-10-08 | Mitsubishi Chemicals Corp | キノリン系化合物、有機電界発光素子用材料、有機電界発光素子用組成物、有機電界発光素子、有機elディスプレイおよび有機el照明 |
WO2009131255A1 (ja) | 2008-04-25 | 2009-10-29 | 住友化学株式会社 | 含窒素複素環式化合物の残基を有する高分子化合物 |
JP2010189630A (ja) | 2009-01-20 | 2010-09-02 | Sumitomo Chemical Co Ltd | メタフェニレン系高分子化合物及びそれを用いた発光素子 |
JP2010215886A (ja) | 2008-07-29 | 2010-09-30 | Sumitomo Chemical Co Ltd | 高分子化合物及びそれを用いた発光素子 |
JP2010254676A (ja) | 2009-03-31 | 2010-11-11 | Semiconductor Energy Lab Co Ltd | ヘテロ芳香環を有する誘導体、ヘテロ芳香環を有する誘導体を用いた発光素子、発光装置、照明装置、電子機器 |
WO2010136109A1 (de) | 2009-05-29 | 2010-12-02 | Merck Patent Gmbh | Materialien für organische elektrolumineszenzvorrichtungen |
JP2010275255A (ja) | 2009-05-29 | 2010-12-09 | Mitsubishi Chemicals Corp | 含窒素複素環化合物、有機電界発光素子材料、有機電界発光素子用組成物、有機電界発光素子、有機elディスプレイ及び有機el照明 |
WO2011032686A1 (de) | 2009-09-16 | 2011-03-24 | Merck Patent Gmbh | Formulierungen zur herstellung von elektronischen vorrichtungen |
WO2011032626A1 (de) | 2009-09-16 | 2011-03-24 | Merck Patent Gmbh | Metallkomplexe |
WO2011049241A1 (ja) | 2009-10-22 | 2011-04-28 | 住友化学株式会社 | 有機エレクトロルミネッセンス素子 |
JP2011105701A (ja) | 2009-10-19 | 2011-06-02 | Sumitomo Chemical Co Ltd | 金属錯体、高分子化合物及びそれを用いた素子 |
WO2011070963A1 (ja) | 2009-12-07 | 2011-06-16 | 新日鐵化学株式会社 | 有機発光材料及び有機発光素子 |
JP2011174062A (ja) | 2010-01-28 | 2011-09-08 | Sumitomo Chemical Co Ltd | 高分子化合物及びそれを用いてなる発光素子 |
WO2012096263A1 (ja) | 2011-01-11 | 2012-07-19 | 三菱化学株式会社 | 有機電界発光素子用組成物、有機電界発光素子、表示装置及び照明装置 |
JP2012144722A (ja) | 2010-12-21 | 2012-08-02 | Sumitomo Chemical Co Ltd | 組成物及びブロック型共重合体 |
JP2013147450A (ja) | 2012-01-18 | 2013-08-01 | Sumitomo Chemical Co Ltd | 金属錯体及び該金属錯体を含む発光素子 |
WO2013146806A1 (ja) | 2012-03-27 | 2013-10-03 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
JP2013237789A (ja) | 2012-05-16 | 2013-11-28 | Sumitomo Chemical Co Ltd | 高分子化合物およびそれを用いた発光素子 |
WO2013191088A1 (ja) | 2012-06-19 | 2013-12-27 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
WO2014115743A1 (ja) | 2013-01-23 | 2014-07-31 | 国立大学法人九州大学 | 発光材料およびそれを用いた有機発光素子 |
JP2014224101A (ja) | 2013-04-15 | 2014-12-04 | 住友化学株式会社 | 金属錯体およびそれを用いた発光素子 |
WO2015020217A1 (ja) | 2013-08-09 | 2015-02-12 | 出光興産株式会社 | 有機エレクトロルミネッセンス用組成物、有機エレクトロルミネッセンス素子用材料、有機エレクトロルミネッセンス素子用材料溶液及び有機エレクトロルミネッセンス素子 |
WO2015145871A1 (ja) | 2014-03-25 | 2015-10-01 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
WO2015156235A1 (ja) * | 2014-04-09 | 2015-10-15 | 住友化学株式会社 | 発光素子およびそれに用いる組成物 |
WO2015186539A1 (ja) * | 2014-06-04 | 2015-12-10 | 住友化学株式会社 | 発光素子 |
WO2016031639A1 (ja) | 2014-08-28 | 2016-03-03 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
WO2016125560A1 (ja) | 2015-02-03 | 2016-08-11 | 住友化学株式会社 | 組成物およびそれを用いた発光素子 |
JP2016175849A (ja) * | 2015-03-19 | 2016-10-06 | 日本放送協会 | 化合物および有機エレクトロルミネッセンス素子 |
WO2017146083A1 (ja) | 2016-02-25 | 2017-08-31 | 住友化学株式会社 | 発光素子及び該発光素子に用いる高分子化合物 |
WO2017154882A1 (ja) * | 2016-03-10 | 2017-09-14 | 住友化学株式会社 | 発光素子 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5767237B2 (ja) * | 2010-10-13 | 2015-08-19 | 新日鉄住金化学株式会社 | 含窒素芳香族化合物、有機半導体材料及び有機電子デバイス |
TWI574987B (zh) * | 2012-01-31 | 2017-03-21 | 劍橋顯示科技有限公司 | 聚合物 |
GB201223369D0 (en) * | 2012-12-24 | 2013-02-06 | Cambridge Display Tech Ltd | Polymer and device |
GB201207866D0 (en) * | 2012-05-04 | 2012-06-20 | Cambridge Display Tech Ltd | Organic light emitting device and method |
US9166175B2 (en) * | 2012-11-27 | 2015-10-20 | Universal Display Corporation | Organic electroluminescent materials and devices |
JP2015191978A (ja) | 2014-03-27 | 2015-11-02 | セイコーエプソン株式会社 | 発光装置および電子機器 |
WO2015192939A1 (de) | 2014-06-18 | 2015-12-23 | Merck Patent Gmbh | Materialien für organische elektrolumineszenzvorrichtungen |
DE102014008722A1 (de) | 2014-06-18 | 2015-12-24 | Merck Patent Gmbh | Zusammensetzungen für elektronische Vorrichtungen |
KR102449938B1 (ko) | 2014-06-30 | 2022-09-30 | 메르크 파텐트 게엠베하 | 금속 착물 |
KR102432970B1 (ko) | 2014-07-28 | 2022-08-16 | 메르크 파텐트 게엠베하 | 금속 착물 |
US9882151B2 (en) * | 2014-11-14 | 2018-01-30 | Universal Display Corporation | Organic electroluminescent materials and devices |
US10177318B2 (en) * | 2015-10-29 | 2019-01-08 | Universal Display Corporation | Organic electroluminescent materials and devices |
US20190214577A1 (en) * | 2015-12-04 | 2019-07-11 | Guangzhou Chinaray Optoelectronic Materials Ltd. | Thermally activated delayed fluorescence material, polymer, mixture, formulation, and organic electronic device |
CN105418486A (zh) * | 2015-12-25 | 2016-03-23 | 上海天马有机发光显示技术有限公司 | 有机电致发光化合物及其有机光电装置 |
-
2017
- 2017-09-06 WO PCT/JP2017/032043 patent/WO2019049225A1/ja unknown
- 2017-09-06 EP EP17924326.6A patent/EP3680945B1/en active Active
- 2017-09-06 KR KR1020207009438A patent/KR102361349B1/ko active IP Right Grant
- 2017-09-06 US US16/642,412 patent/US11515477B2/en active Active
- 2017-09-06 JP JP2017564138A patent/JP6566050B2/ja active Active
- 2017-09-06 CN CN201780094604.9A patent/CN111052430B/zh active Active
Patent Citations (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002045184A1 (en) | 2000-11-28 | 2002-06-06 | Avecia Limited | Field effect transistors and materials and methods for their manufacture |
JP2004530254A (ja) | 2001-02-20 | 2004-09-30 | アイシス イノベイシヨン リミテツド | 金属含有デンドリマー |
JP2007504272A (ja) | 2003-05-16 | 2007-03-01 | イシス イノベイション リミテッド | 有機燐光材料および有機オプトエレクトロニクス素子 |
WO2005049546A1 (en) | 2003-11-14 | 2005-06-02 | Sumitomo Chemical Company, Limited | Halogenated bisdiarylaminopolycylic aromatic compounds and polymers thereof |
JP2006188673A (ja) | 2004-12-07 | 2006-07-20 | Sumitomo Chemical Co Ltd | 高分子材料およびそれを用いた素子 |
WO2006114966A1 (ja) | 2005-04-18 | 2006-11-02 | Konica Minolta Holdings, Inc. | 有機エレクトロルミネッセンス素子、表示装置及び照明装置 |
WO2006121811A1 (en) | 2005-05-06 | 2006-11-16 | Universal Display Corporation | Stability oled materials and devices with improved stability |
WO2007063754A1 (ja) | 2005-12-01 | 2007-06-07 | Nippon Steel Chemical Co., Ltd. | 有機電界発光素子用化合物及び有機電界発光素子 |
JP2008106241A (ja) | 2006-09-25 | 2008-05-08 | Sumitomo Chemical Co Ltd | 高分子化合物及びそれを用いた高分子発光素子 |
WO2008056746A1 (fr) | 2006-11-09 | 2008-05-15 | Nippon Steel Chemical Co., Ltd. | Composé pour un dispositif électroluminescent organique et dispositif électroluminescent organique |
JP2008179617A (ja) | 2006-12-27 | 2008-08-07 | Sumitomo Chemical Co Ltd | 金属錯体、高分子化合物及びこれらを含む素子 |
JP2009227663A (ja) | 2008-02-25 | 2009-10-08 | Mitsubishi Chemicals Corp | キノリン系化合物、有機電界発光素子用材料、有機電界発光素子用組成物、有機電界発光素子、有機elディスプレイおよび有機el照明 |
WO2009131255A1 (ja) | 2008-04-25 | 2009-10-29 | 住友化学株式会社 | 含窒素複素環式化合物の残基を有する高分子化合物 |
JP2010215886A (ja) | 2008-07-29 | 2010-09-30 | Sumitomo Chemical Co Ltd | 高分子化合物及びそれを用いた発光素子 |
JP2010189630A (ja) | 2009-01-20 | 2010-09-02 | Sumitomo Chemical Co Ltd | メタフェニレン系高分子化合物及びそれを用いた発光素子 |
JP2010254676A (ja) | 2009-03-31 | 2010-11-11 | Semiconductor Energy Lab Co Ltd | ヘテロ芳香環を有する誘導体、ヘテロ芳香環を有する誘導体を用いた発光素子、発光装置、照明装置、電子機器 |
WO2010136109A1 (de) | 2009-05-29 | 2010-12-02 | Merck Patent Gmbh | Materialien für organische elektrolumineszenzvorrichtungen |
JP2010275255A (ja) | 2009-05-29 | 2010-12-09 | Mitsubishi Chemicals Corp | 含窒素複素環化合物、有機電界発光素子材料、有機電界発光素子用組成物、有機電界発光素子、有機elディスプレイ及び有機el照明 |
WO2011032686A1 (de) | 2009-09-16 | 2011-03-24 | Merck Patent Gmbh | Formulierungen zur herstellung von elektronischen vorrichtungen |
WO2011032626A1 (de) | 2009-09-16 | 2011-03-24 | Merck Patent Gmbh | Metallkomplexe |
JP2011105701A (ja) | 2009-10-19 | 2011-06-02 | Sumitomo Chemical Co Ltd | 金属錯体、高分子化合物及びそれを用いた素子 |
WO2011049241A1 (ja) | 2009-10-22 | 2011-04-28 | 住友化学株式会社 | 有機エレクトロルミネッセンス素子 |
WO2011070963A1 (ja) | 2009-12-07 | 2011-06-16 | 新日鐵化学株式会社 | 有機発光材料及び有機発光素子 |
JP2011174062A (ja) | 2010-01-28 | 2011-09-08 | Sumitomo Chemical Co Ltd | 高分子化合物及びそれを用いてなる発光素子 |
JP2012144722A (ja) | 2010-12-21 | 2012-08-02 | Sumitomo Chemical Co Ltd | 組成物及びブロック型共重合体 |
WO2012096263A1 (ja) | 2011-01-11 | 2012-07-19 | 三菱化学株式会社 | 有機電界発光素子用組成物、有機電界発光素子、表示装置及び照明装置 |
JP2013147450A (ja) | 2012-01-18 | 2013-08-01 | Sumitomo Chemical Co Ltd | 金属錯体及び該金属錯体を含む発光素子 |
WO2013146806A1 (ja) | 2012-03-27 | 2013-10-03 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
JP2013237789A (ja) | 2012-05-16 | 2013-11-28 | Sumitomo Chemical Co Ltd | 高分子化合物およびそれを用いた発光素子 |
WO2013191088A1 (ja) | 2012-06-19 | 2013-12-27 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
WO2014115743A1 (ja) | 2013-01-23 | 2014-07-31 | 国立大学法人九州大学 | 発光材料およびそれを用いた有機発光素子 |
JP2014224101A (ja) | 2013-04-15 | 2014-12-04 | 住友化学株式会社 | 金属錯体およびそれを用いた発光素子 |
WO2015020217A1 (ja) | 2013-08-09 | 2015-02-12 | 出光興産株式会社 | 有機エレクトロルミネッセンス用組成物、有機エレクトロルミネッセンス素子用材料、有機エレクトロルミネッセンス素子用材料溶液及び有機エレクトロルミネッセンス素子 |
WO2015145871A1 (ja) | 2014-03-25 | 2015-10-01 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
WO2015156235A1 (ja) * | 2014-04-09 | 2015-10-15 | 住友化学株式会社 | 発光素子およびそれに用いる組成物 |
WO2015186539A1 (ja) * | 2014-06-04 | 2015-12-10 | 住友化学株式会社 | 発光素子 |
WO2016031639A1 (ja) | 2014-08-28 | 2016-03-03 | 住友化学株式会社 | 高分子化合物およびそれを用いた発光素子 |
WO2016125560A1 (ja) | 2015-02-03 | 2016-08-11 | 住友化学株式会社 | 組成物およびそれを用いた発光素子 |
JP2016175849A (ja) * | 2015-03-19 | 2016-10-06 | 日本放送協会 | 化合物および有機エレクトロルミネッセンス素子 |
WO2017146083A1 (ja) | 2016-02-25 | 2017-08-31 | 住友化学株式会社 | 発光素子及び該発光素子に用いる高分子化合物 |
WO2017154882A1 (ja) * | 2016-03-10 | 2017-09-14 | 住友化学株式会社 | 発光素子 |
Non-Patent Citations (4)
Title |
---|
ADVANCED MATERIALS (ADV. MATER, vol. 26, 2014, pages 7931 - 7958 |
CHEMICAL REVIEW (CHEM. REV., vol. 109, 2009, pages 897 - 1091 |
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 106, 1984, pages 6647 - 6653 |
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 107, 1985, pages 1431 - 1432 |
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JP6566050B2 (ja) | 2019-08-28 |
JPWO2019049225A1 (ja) | 2019-11-07 |
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