WO2011081449A2 - 트리페닐렌계 화합물 및 이를 포함하는 유기 전계 발광 소자 - Google Patents
트리페닐렌계 화합물 및 이를 포함하는 유기 전계 발광 소자 Download PDFInfo
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- WO2011081449A2 WO2011081449A2 PCT/KR2010/009503 KR2010009503W WO2011081449A2 WO 2011081449 A2 WO2011081449 A2 WO 2011081449A2 KR 2010009503 W KR2010009503 W KR 2010009503W WO 2011081449 A2 WO2011081449 A2 WO 2011081449A2
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 87
- SLGBZMMZGDRARJ-UHFFFAOYSA-N Triphenylene Natural products C1=CC=C2C3=CC=CC=C3C3=CC=CC=C3C2=C1 SLGBZMMZGDRARJ-UHFFFAOYSA-N 0.000 title abstract description 6
- 125000005580 triphenylene group Chemical group 0.000 title abstract description 6
- 238000005401 electroluminescence Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 17
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- 239000010410 layer Substances 0.000 claims description 41
- 125000003118 aryl group Chemical group 0.000 claims description 38
- 125000004429 atom Chemical group 0.000 claims description 23
- 125000000217 alkyl group Chemical group 0.000 claims description 22
- 125000003282 alkyl amino group Chemical group 0.000 claims description 21
- 239000012044 organic layer Substances 0.000 claims description 16
- 125000000623 heterocyclic group Chemical group 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 125000004104 aryloxy group Chemical group 0.000 claims description 14
- 125000001188 haloalkyl group Chemical group 0.000 claims description 14
- 125000003342 alkenyl group Chemical group 0.000 claims description 13
- 125000003545 alkoxy group Chemical group 0.000 claims description 13
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 13
- 125000001769 aryl amino group Chemical group 0.000 claims description 13
- 125000005104 aryl silyl group Chemical group 0.000 claims description 13
- 125000001072 heteroaryl group Chemical group 0.000 claims description 12
- -1 aromatic atoms Hydrocarbon Chemical class 0.000 claims description 10
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- 125000004093 cyano group Chemical group *C#N 0.000 claims description 8
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- SVSARCCKBMZNMR-UHFFFAOYSA-N [1-[2-[methyl-[2-[4-(oxoazaniumylmethylidene)pyridin-1-yl]ethyl]amino]ethyl]pyridin-4-ylidene]methyl-oxoazanium;dichloride Chemical compound [Cl-].[Cl-].C1=CC(=C[NH+]=O)C=CN1CCN(C)CCN1C=CC(=C[NH+]=O)C=C1 SVSARCCKBMZNMR-UHFFFAOYSA-N 0.000 claims description 5
- 125000005842 heteroatom Chemical group 0.000 claims description 5
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 125000001691 aryl alkyl amino group Chemical group 0.000 description 2
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- 125000000592 heterocycloalkyl group Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- UMLDUMMLRZFROX-UHFFFAOYSA-N pyridin-2-ylboronic acid Chemical compound OB(O)C1=CC=CC=N1 UMLDUMMLRZFROX-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 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
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
-
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1007—Non-condensed systems
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
- C09K2211/1033—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom with oxygen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
- C09K2211/1037—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom with sulfur
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1059—Heterocyclic compounds characterised by ligands containing three nitrogen atoms as heteroatoms
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1092—Heterocyclic compounds characterised by ligands containing sulfur as the only heteroatom
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- 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]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
Definitions
- the present invention provides a novel triphenylene compound having excellent electron transporting ability, hole injection and transporting ability, and light emitting ability, and organic electroluminescence having improved characteristics such as luminous efficiency, brightness, thermal stability, driving voltage, and lifetime by including the same in at least one organic layer. It relates to an element.
- organic electroluminescent (EL) devices led to blue electroluminescence using anthracene monocrystals in 1965, based on Bernanose's observation of organic thin film emission in the 1950s.
- EL organic electroluminescent
- an organic EL device having a laminated structure divided into a functional layer of a hole layer and a light emitting layer has been proposed, and has been developed in the form of introducing each characteristic organic material layer in the device to make a high efficiency and long life organic EL device. This led to the development of specialized materials used for this.
- Such an organic EL device may include an indium tin oxide (ITO) substrate, an anode, a hole injection layer selectively receiving holes from an anode, a hole transport layer selectively transferring holes, a light emitting layer in which holes and electrons recombine to emit light, It consists of an electron transport layer that selectively transfers electrons, an electron injection layer that accepts electrons from a cathode, and a cathode.
- ITO indium tin oxide
- the reason why the organic EL device is manufactured in multiple layers is that the movement speeds of the holes and the electrons are different. If the appropriate hole injection layer, the hole transport layer, the electron transport layer, and the electron injection layer are made, the holes and the electrons can be effectively transferred. The balance between the holes and the electrons in the device can be achieved to increase the luminous efficiency.
- Electrons injected from the electron injection layer and holes transferred from the hole injection layer recombine in the emission layer to form excitons, and fall from the singlet excited state to the ground state and are called fluorescence, and fall from the triplet excited state to the ground state.
- Luminescence is called phosphorescence. Theoretically, when the exciton is generated when the carrier is recombined in the emission layer, the ratio of singlet and triplet excitons is generated at a ratio of 1: 3, and when phosphorescence is used, the internal quantum efficiency may be 100%.
- carbazole compounds such as CBP (4,4-dicarbazolybiphenyl) are used as the phosphorescent host material, and metal complex compounds containing heavy atoms such as Ir and Pt are widely used as the phosphorescent dopant material. It is used.
- CBP which is currently used phosphorescent host material
- Tg glass transition temperature
- an object of the present invention is to provide a triphenylene-based compound having excellent electron transporting ability, hole injection and / or transporting capacity and / or luminous ability and at least one organic layer, luminous efficiency, brightness, thermal stability, driving voltage, lifetime It is to provide an organic EL device having improved characteristics.
- the present invention to achieve the above object provides a compound represented by the following formula (1).
- A means N-containing, 6- to 8-membered heterocycle
- X is selected from the group consisting of-(CR 20 R 21 ) n-,-(SiR 22 R 23 ) m-, -NR 24- , -O- and -S-, and n and m are each independently 1 to An integer of 3;
- R 1 to R 24 are each independently hydrogen, deuterium, halogen, substituted or unsubstituted C1-C40 alkyl, substituted or unsubstituted heterocyclic ring having 3 to 40 nuclear atoms, substituted or unsubstituted C1-C40 alkoxy, Substituted or unsubstituted aromatic hydrocarbons having 6 to 40 nuclear atoms, substituted or unsubstituted C6-C40 aryloxy, substituted or unsubstituted (C7-C40 aryl) C1-C40alkyl, substituted or unsubstituted C2-C40 Alkenyl, substituted or unsubstituted C1-C40 alkylamino, substituted or unsubstituted C6-C40 arylamino, substituted or unsubstituted (C7-C40 aryl) C1-C40alkylamino, substituted or unsubstituted C3-C20 Alkyl
- L is substituted or unsubstituted C1-C40 alkyl, substituted or unsubstituted heteroatom having 3 to 40 nuclear atoms, substituted or unsubstituted C1-C40 alkoxy, substituted or unsubstituted nuclear atom having 6 to 60 aromatic atoms Hydrocarbon, substituted or unsubstituted C6-C40 aryloxy, substituted or unsubstituted (C7-C40 aryl) C1-C40alkyl, substituted or unsubstituted C2-C40 alkenyl, substituted or unsubstituted C1-C40 alkylamino , Substituted or unsubstituted C6-C40 arylamino, substituted or unsubstituted (C7-C40 aryl) C1-C40 alkylamino, substituted or unsubstituted C3-C20 alkylsilyl, substituted or unsubstituted C8-C
- the present invention the anode; cathode; And one or more organic layers interposed between the anode and the cathode,
- At least one of the organic layers provides an organic EL device comprising the compound described above.
- the triphenylene-based compound of the present invention has a larger molecular bandgap and a larger molecular weight than 4,4-dicarbazolybiphenyl (CBP), which is used in the related art, and thus, the glass transition temperature is high, so that excellent thermal stability can be expected.
- CBP 4,4-dicarbazolybiphenyl
- the organic EL device including the compound of the present invention can be greatly improved in terms of light emitting performance and lifetime, and thus can be effectively applied to a full color display panel and the like.
- the present invention relates to a compound represented by the formula (1), specifically, to a triphenylene moiety that is not properly exhibited as a phosphorescent host due to inadequate triplet energy level, an N-containing heterocyclic ring through a linker (L)
- a linker L
- X is selected from the group consisting of-(CR 20 R 21 ) n-,-(SiR 22 R 23 ) m-, -NR 24- , -O- and -S-, n and m are each independently an integer of 1 to 3, whereby ring A comprising X forms a 6- to 8-membered heterocycle containing nitrogen.
- R 1 to R 24 are each independently hydrogen or any substituent, and non-limiting examples of such substituents include deuterium, halogen, substituted or unsubstituted C 1 -C 40 alkyl (preferably C 1 -C 8 alkyl), substitution Or an unsubstituted heterocyclic ring having 3 to 40 nuclear atoms (preferably a heterocyclic ring having 3 to 18 nuclear atoms), a substituted or unsubstituted C1-C40 alkoxy (preferably C1-C24 alkoxy), a substitution Or an unsubstituted aromatic hydrocarbon having 6 to 40 nuclear atoms (preferably an aromatic hydrocarbon having 6 to 24 nuclear atoms), a substituted or unsubstituted C6-C40 aryloxy (preferably C6-C18 aryloxy) , Substituted or unsubstituted (C7-C40 aryl) C1-C40 alkyl (preferably (C7-C24 aryl) C1-C8 alkyl
- R 1 to R 23 may be bonded to a group adjacent to each other to form a fused aliphatic ring, a condensed aromatic ring, a condensed heteroaliphatic ring, or a condensed heteroaromatic ring.
- R 1 to R 4 adjacent groups Adjacent groups of R 5 to R 8 , adjacent groups of R 9 to R 19 , R 20 and R 21 , R 22 and R 23 combine with each other to form a fused aliphatic ring, a condensed aromatic ring, a condensation Heteroaliphatic rings or condensed heteroaromatic rings can be formed.
- Linker L is substituted or unsubstituted C1-C40 alkyl, substituted or unsubstituted heteroatom having 3 to 40 heteroatoms, substituted or unsubstituted C1-C40 alkoxy, substituted or unsubstituted nucleus having 6 to 60 Aromatic hydrocarbons, substituted or unsubstituted C6-C40 aryloxy, substituted or unsubstituted (C7-C40 aryl) C1-C40 alkyl, substituted or unsubstituted C2-C40 alkenyl, substituted or unsubstituted C1-C40 alkyl Amino, substituted or unsubstituted C6-C40 arylamino, substituted or unsubstituted (C7-C40 aryl) C1-C40alkylamino, substituted or unsubstituted C3-C20 alkylsilyl, substituted or unsubstituted C8-C40 ary
- Alkyl, heterocyclic, alkoxy, aromatic hydrocarbons, aryloxy, arylalkyl, alkenyl, alkylamino, arylamino, arylalkylamino, alkylsilyl, arylsilyl, ketoaryl, and haloalkyl of R 1 to R 24 and linker L Are each independently deuterium, halogen, C1-C40 alkyl, heterocyclic ring having 3 to 40 nuclear atoms, C1-C40 alkoxy, aromatic hydrocarbon having 6 to 40 nuclear atoms, C6-C40 aryloxy, (C7-C40 aryl) C1-C40 alkyl, C2-C40 alkenyl, C1-C40 alkylamino, C6-C40 arylamino, (C7-C40 aryl) C1-C40 alkylamino, C3-C20 alkylsilyl, C8-C40 arylsilyl, C7-C
- the compound of formula 1 of the present invention may be represented by the following formula 1a, 1b or 1c as a representative example.
- A, X, R 1 to R 19 are as defined above,
- R 25 to R 28 are each independently hydrogen, deuterium, halogen, substituted or unsubstituted C1-C40 alkyl, substituted or unsubstituted heterocyclic ring having 3 to 40 nuclear atoms, substituted or unsubstituted C1-C40 alkoxy, Substituted or unsubstituted aromatic hydrocarbons having 6 to 40 nuclear atoms, substituted or unsubstituted C6-C40 aryloxy, substituted or unsubstituted (C7-C40 aryl) C1-C40 alkyl, substituted or unsubstituted C2-C40 Alkenyl, substituted or unsubstituted C1-C40 alkylamino, substituted or unsubstituted C6-C40 arylamino, substituted or unsubstituted (C7-C40 aryl) C1-C40 alkylamino, substituted or unsubstituted C3-C20 Alkyl
- Alkyl, heterocyclic, alkoxy, aromatic hydrocarbon, aryloxy, arylalkyl, alkenyl, alkylamino, arylamino, arylalkylamino, alkylsilyl, arylsilyl, ketoaryl, and haloalkyl of R 25 to R 28 are each independently It may be further substituted with C1-C40 alkyl, C6-C40 aryl, heteroaryl having 5 to 40 nuclear atoms.
- the compound of Formula 1 of the present invention may be a compound represented by the following formula (1d).
- X, R 1 to R 19 are as defined above,
- At least one of the plurality of Z is a nitrogen atom and the rest are carbon atoms, and the hydrogen atom attached to Z is unsubstituted or at least one is deuterium, halogen, substituted or unsubstituted C1-C40 alkyl, substituted or unsubstituted nuclear atom Heterocyclic, substituted or unsubstituted C1-C40 alkoxy, substituted or unsubstituted aromatic hydrocarbon of 6 to 40, or substituted or unsubstituted C6-C40 aryloxy, substituted or unsubstituted ( C7-C40 aryl) C1-C40alkyl, substituted or unsubstituted C2-C40 alkenyl, substituted or unsubstituted C1-C40 alkylamino, substituted or unsubstituted C6-C40 arylamino, substituted or unsubstituted (C7 -C40 aryl) C1-C40
- Each of these substituents may be further independently substituted with C1-C40 alkyl, C6-C40 aryl, heteroaryl having 5 to 40 nuclear atoms, and the like.
- unsubstituted heterocycle means a monoheterocyclic or polyheterocyclic aromatic or non-aromatic ring having 3 to 40 nuclear atoms, and at least one carbon in the ring, preferably 1 to Three carbons are substituted with heteroatoms such as N, O, P or S.
- heteroatoms such as N, O, P or S.
- Non-limiting examples thereof include morpholine, heterocycloalkyl such as piperazine, heteroaryl such as indole, and the like.
- heterocycles as used herein are to be understood to include those in which an aromatic or non-aromatic heteroatom-containing ring is condensed (fused) with one or more aromatic or non-aromatic rings.
- Unsubstituted aromatic hydrocarbon means an aromatic system having 6 to 60 carbon atoms, singly or in combination of two or more rings. Two or more rings may be attached in a simple or fused form with one another. Non-limiting examples thereof include phenyl, aryl such as naphthyl, fluorene and the like.
- the compound of Formula 1 of the present invention may be synthesized according to a general synthetic method (eg, Suzuki coupling). Detailed synthesis procedures for the compounds of the present invention will be described in detail in the synthesis examples described below.
- the invention also includes an anode; Cathode; And at least one organic layer interposed between the anode and the cathode, wherein at least one of the at least one organic layer comprises a compound represented by Formula 1 above. To provide.
- the compound of Formula 1 may be included alone or in plurality, and the compound represented by Formulas 1a to 1d is preferable.
- the organic layer including the compound of Formula 1 of the present invention may be any one or more of a hole injection layer, a hole transport layer, an electron transport layer and a light emitting layer.
- the light emitting layer may include a phosphorescent dopant material or a fluorescent dopant material.
- the compound of formula 1 of the present invention may be included in the organic EL device as a blue, green, and / or red phosphorescent host, fluorescent host, hole transport material, hole injection material or electron transport material.
- the compound of formula 1 of the present invention may be used as a phosphorescent host.
- the compound of the present invention has a high glass transition temperature of 150 °C or more, when the compound is used as an organic layer of the organic EL device, since the crystallization is minimized in the organic EL device, the driving voltage of the device can be lowered, luminous efficiency, luminance , Thermal stability, and lifetime characteristics can be improved.
- a substrate, an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and a cathode may be sequentially stacked, wherein the light emitting layer, hole injection layer, At least one of the hole transport layer and the electron transport layer may include a compound represented by Chemical Formula 1.
- An electron injection layer may be positioned on the electron transport layer.
- the organic EL device according to the present invention may not only have a structure in which an anode, at least one organic layer, and a cathode are sequentially stacked, but an insulating layer or an adhesive layer may be inserted at the interface between the electrode and the organic layer.
- the organic layer including the compound of Formula 1 may be formed by vacuum deposition or solution coating.
- the solution application include spin coating, dip coating, doctor blading, inkjet printing or thermal transfer method, but is not limited thereto.
- the organic EL device of the present invention forms an organic layer and an electrode using materials and methods known in the art, except that at least one of the organic layers is formed to include the compound represented by the formula (1) of the present invention. can do.
- a silicon wafer, quartz, glass plate, metal plate, plastic film or sheet may be used as the substrate.
- the anode material may be a metal such as vanadium, chromium, copper, zinc, gold or an alloy thereof; Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO); Combinations of oxides with metals such as ZnO: Al or SnO 2 : Sb; Conductive polymers such as polythiophene, poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (PEDT), polypyrrole and polyaniline; Or carbon black, but is not limited thereto.
- Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO); Combinations of oxides with metals such as ZnO: Al or SnO 2 : Sb
- Conductive polymers such as polythiophene, poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (PEDT),
- Cathode materials include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin or lead or alloys thereof; Multilayer structure materials such as LiF / Al or LiO 2 / Al, and the like, but are not limited thereto.
- the hole injection layer, the hole transport layer, the electron transport layer, and the electron injection layer are not particularly limited, and conventional materials known in the art may be used.
- 2,6-dibromopyridine (28.28 g, 120.43 mmol), 10H-phenothiazine (15.0 g, 75.27 mmol), sodium t-butoxide (21.70 g, 225.81 mmol), and tri-t-butylphosphine 1.83 ml (7.53 mmol) was dissolved in 400 ml of toluene, Pd 2 (dba) 3 (1.38 g, 1.51 mmol) was added thereto, and the mixture was stirred under reflux for 12 hours.
- 1,3,5-tribromobenzene (51.89 g, 120.43 mmol), 10H-phenothiazine (15.0 g, 75.27 mmol), sodium t-butoxide (21.70 g, 225.81 mmol), and tri-t-butyl Phosphine 1.83 ml (7.53 mmol) was dissolved in 400 ml of toluene, Pd 2 (dba) 3 (1.38 g, 1.51 mmol) was added thereto, and the mixture was stirred under reflux for 12 hours.
- 2,6-dibromonaphthalene 34.19 g, 120.43 mmol
- 10H-phenothiazine (15.0 g, 75.27 mmol)
- sodium t-butoxide 21.70 g, 225.81 mmol
- tri-t-butylphosphine 1.83 ml (7.53 mmol) was dissolved in 400 ml of toluene, Pd 2 (dba) 3 (1.38 g, 1.51 mmol) was added thereto, and the mixture was stirred under reflux for 12 hours.
- Inv-66 (10.95 g, Yield 85%) was obtained by the same method as Synthesis Example 1, except that 10 g (19.49 mmol) of the compound synthesized in ⁇ Step 1> was used.
- a glass substrate coated with ITO (Indium tin oxide) having a thickness of 1500 ⁇ was washed with distilled water ultrasonically. After the washing of distilled water, ultrasonic washing with a solvent such as isopropyl alcohol, acetone, methanol, and the like was dried and then transferred to a plasma cleaner, and then the substrate was cleaned for 5 minutes using an oxygen plasma, and then the substrate was transferred to a vacuum depositor.
- ITO Indium tin oxide
- NPB (40 nm) / each compound synthesized in Synthesis Examples 1-12 + 10% Ir (ppy) 2 (acac) (20 nm) / BCP (10 nm) / Alq 3 (40 nm) / LiF ( An organic EL device was manufactured in the order of 1 nm) / Al (200 nm).
- An organic EL device was manufactured in the same manner as in Example 1, except that CBP was used as a light emitting host material, instead of the compound prepared in Synthesis Example, to form an emission layer.
- NPB NPB
- CBP CBP
- Ir ppy 2 (acac)
- BCP BCP
- Example 1-12 For each organic EL device manufactured in Example 1-12 and Comparative Example 1, the driving voltage, current efficiency, and luminance were measured, and the results are shown in Table 1 below.
- the organic EL device (Examples 1 to 12) using the compound according to the present invention is in terms of driving voltage and luminous efficiency than the organic EL device (Comparative Example 1) using the conventional CBP You can see that it shows superior performance.
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- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
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Abstract
Description
샘플 | 구동전압(V) | 휘도(cd/㎡) | 최대 전류 효율(cd/A) | 컬러 |
Inv-1 | 6.01 | 201 | 20.1 | 녹색 |
Inv-9 | 6.61 | 188 | 18.8 | 녹색 |
Inv-13 | 6.85 | 186 | 18.6 | 녹색 |
Inv-17 | 6.71 | 194 | 19.4 | 녹색 |
Inv-24 | 6.55 | 186 | 18.6 | 녹색 |
Inv-32 | 6.27 | 185 | 18.5 | 녹색 |
Inv-35 | 6.88 | 179 | 17.9 | 녹색 |
Inv-50 | 6.54 | 191 | 19.1 | 녹색 |
Inv-51 | 7.55 | 175 | 17.5 | 녹색 |
Inv-58 | 6.15 | 199 | 19.9 | 녹색 |
Inv-59 | 6.59 | 189 | 18.9 | 녹색 |
Inv-66 | 6.78 | 192 | 19.5 | 녹색 |
비교예 1 | 7.94 | 174 | 17.4 | 녹색 |
Claims (6)
- 하기 화학식 1로 표시되는 화합물:<화학식 1>상기 식에서,A는 N-함유, 6- 내지 8-원(membered)의 헤테로환(heterocycle)을 의미하고;X 는 -(CR20R21)n-, -(SiR22R23)m-, -NR24-, -O- 및 -S-로 이루어진 군에서 선택되고, n 및 m은 각각 독립적으로 1 내지 3의 정수이며;R1 내지 R24는 각각 독립적으로 수소, 중수소, 할로겐, 치환 또는 비치환된 C1-C40 알킬, 치환 또는 비치환된 핵원자수 3 내지 40의 헤테로환, 치환 또는 비치환된 C1-C40 알콕시, 치환 또는 비치환된 핵원자수 6 내지 40의 방향족 탄화수소, 치환 또는 비치환된 C6-C40 아릴옥시, 치환 또는 비치환된 (C7-C40 아릴)C1-C40알킬, 치환 또는 비치환된 C2-C40 알켄일, 치환 또는 비치환된 C1-C40 알킬아미노, 치환 또는 비치환된 C6-C40 아릴아미노, 치환 또는 비치환된 (C7-C40 아릴)C1-C40알킬아미노, 치환 또는 비치환된 C3-C20 알킬실릴, 치환 또는 비치환된 C8-C40 아릴실릴, 치환 또는 비치환된 C7-C40 케토아릴, 치환 또는 비치환된 C1-C40 할로알킬, 또는 시아노이고, R1 내지 R23은 서로 인접하는 기와 결합하여 축합(fused) 지방족 고리, 축합 방향족 고리, 축합 헤테로지방족 고리 또는 축합 헤테로방향족 고리를 형성할 수 있으며;L은 치환 또는 비치환된 C1-C40 알킬, 치환 또는 비치환된 핵원자수 3 내지 40의 헤테로환, 치환 또는 비치환된 C1-C40 알콕시, 치환 또는 비치환된 핵원자수 6 내지 60의 방향족 탄화수소, 치환 또는 비치환된 C6-C40 아릴옥시, 치환 또는 비치환된 (C7-C40 아릴)C1-C40알킬, 치환 또는 비치환된 C2-C40 알켄일, 치환 또는 비치환된 C1-C40 알킬아미노, 치환 또는 비치환된 C6-C40 아릴아미노, 치환 또는 비치환된 (C7-C40 아릴)C1-C40알킬아미노, 치환 또는 비치환된 C3-C20 알킬실릴, 치환 또는 비치환된 C8-C40 아릴실릴, 치환 또는 비치환된 C7-C40 케토아릴, 또는 치환 또는 비치환된 C1-C40 할로알킬이다.
- 제 1 항에 있어서,상기 화학식 1의 화합물은 하기 화학식 1a, 1b 또는 1c의 화합물인 것을 특징으로 하는 화합물:<화학식 1a><화학식 1b><화학식 1c>상기 식에서,A, X, R1 내지 R19는 제 1 항에서 정의된 바와 같고,R25 내지 R28은 각각 독립적으로 수소, 중수소, 할로겐, 치환 또는 비치환된 C1-C40 알킬, 치환 또는 비치환된 핵원자수 3 내지 40의 헤테로환, 치환 또는 비치환된 C1-C40 알콕시, 치환 또는 비치환된 핵원자수 6 내지 40의 방향족 탄화수소, 치환 또는 비치환된 C6-C40 아릴옥시, 치환 또는 비치환된 (C7-C40 아릴)C1-C40 알킬, 치환 또는 비치환된 C2-C40 알켄일, 치환 또는 비치환된 C1-C40 알킬아미노, 치환 또는 비치환된 C6-C40 아릴아미노, 치환 또는 비치환된 (C7-C40 아릴)C1-C40 알킬아미노, 치환 또는 비치환된 C3-C20 알킬실릴, 치환 또는 비치환된 C8-C40 아릴실릴, 치환 또는 비치환된 C7-C40 케토아릴, 치환 또는 비치환된 C1-C40 할로알킬, 또는 시아노이며, R25 내지 R28은 서로 인접하는 기와 결합하여 축합(fused) 지방족 고리, 축합 방향족 고리, 축합 헤테로지방족 고리 또는 축합 헤테로방향족 고리를 형성할 수 있다.
- 제 1 항에 있어서,상기 화학식 1의 화합물은 하기 화학식 1d의 화합물인 것을 특징으로 하는 화합물:<화학식 1d>상기 식에서,A, X, R1 내지 R19는 제 1 항에서 정의된 바와 같고,복수 개의 Z 중 적어도 하나는 질소 원자이고 나머지는 탄소 원자이며, Z에 부착된 수소 원자는 비치환되거나 적어도 하나는 중수소, 할로겐, 치환 또는 비치환된 C1-C40 알킬, 치환 또는 비치환된 핵원자수 3 내지 40의 헤테로환, 치환 또는 비치환된 C1-C40 알콕시, 치환 또는 비치환된 핵원자수 6 내지 40의 방향족 탄화수소, 치환 또는 비치환된 C6-C40 아릴옥시, 치환 또는 비치환된 (C7-C40 아릴)C1-C40알킬, 치환 또는 비치환된 C2-C40 알켄일, 치환 또는 비치환된 C1-C40 알킬아미노, 치환 또는 비치환된 C6-C40 아릴아미노, 치환 또는 비치환된 (C7-C40 아릴)C1-C40 알킬아미노, 치환 또는 비치환된 C3-C20 알킬실릴, 치환 또는 비치환된 C8-C40 아릴실릴, 치환 또는 비치환된 C7-C40 케토아릴, 치환 또는 비치환된 C1-C40 할로알킬, 또는 시아노로 치환되며, 이들 치환기는 서로 인접하는 기와 결합하여 축합(fused) 지방족 고리, 축합 방향족 고리, 축합 헤테로지방족 고리 또는 축합 헤테로방향족 고리를 형성할 수 있다.
- 양극; 음극; 및 상기 양극과 음극 사이에 개재(介在)된 1층 이상의 유기층을 포함하는 유기 전계발광 소자로서,상기 유기층 중 적어도 하나는 제1항 내지 제3항 중 어느 한 항에 따른 화합물을 포함하는 것을 특징으로 하는 유기 전계발광 소자.
- 제4항에 있어서,상기 유기층은 발광층, 전자수송층, 정공 주입층 및 정공 수송층으로 구성된 군으로부터 선택되는 것을 특징으로 하는 유기 전계발광 소자.
- 제4항에 있어서,상기 화합물은 인광 호스트 물질 또는 형광 호스트 물질인 것을 특징으로 하는 유기 전계발광 소자.
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KR101618683B1 (ko) | 2013-05-16 | 2016-05-09 | 제일모직 주식회사 | 유기 화합물, 유기 광전자 소자 및 표시 장치 |
JP6534250B2 (ja) * | 2014-09-03 | 2019-06-26 | 保土谷化学工業株式会社 | 遅延蛍光体用ホスト材料、有機発光素子および化合物 |
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