WO2004018587A1 - 有機エレクトロルミネッセンス素子及びアントラセン誘導体 - Google Patents
有機エレクトロルミネッセンス素子及びアントラセン誘導体 Download PDFInfo
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- WO2004018587A1 WO2004018587A1 PCT/JP2003/010402 JP0310402W WO2004018587A1 WO 2004018587 A1 WO2004018587 A1 WO 2004018587A1 JP 0310402 W JP0310402 W JP 0310402W WO 2004018587 A1 WO2004018587 A1 WO 2004018587A1
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- MNCMBBIFTVWHIP-UHFFFAOYSA-N 1-anthracen-9-yl-2,2,2-trifluoroethanone Chemical group C1=CC=C2C(C(=O)C(F)(F)F)=C(C=CC=C3)C3=CC2=C1 MNCMBBIFTVWHIP-UHFFFAOYSA-N 0.000 description 4
- 125000001397 3-pyrrolyl group Chemical group [H]N1C([H])=C([*])C([H])=C1[H] 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
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- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- LZWQNOHZMQIFBX-UHFFFAOYSA-N lithium;2-methylpropan-2-olate Chemical compound [Li+].CC(C)(C)[O-] LZWQNOHZMQIFBX-UHFFFAOYSA-N 0.000 description 1
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 description 1
- 125000003588 lysine group Chemical group [H]N([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(N([H])[H])C(*)=O 0.000 description 1
- 125000003564 m-cyanobenzyl group Chemical group [H]C1=C([H])C(=C([H])C(C#N)=C1[H])C([H])([H])* 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- REOJLIXKJWXUGB-UHFFFAOYSA-N mofebutazone Chemical group O=C1C(CCCC)C(=O)NN1C1=CC=CC=C1 REOJLIXKJWXUGB-UHFFFAOYSA-N 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 125000006505 p-cyanobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C#N)C([H])([H])* 0.000 description 1
- 125000006503 p-nitrobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1[N+]([O-])=O)C([H])([H])* 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- UKCYZZJQSYCZQQ-UHFFFAOYSA-N propan-2-yl-di(propan-2-yloxy)borane Chemical compound CC(C)OB(C(C)C)OC(C)C UKCYZZJQSYCZQQ-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 238000001275 scanning Auger electron spectroscopy Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical group [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 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
- 125000004305 thiazinyl group Chemical group S1NC(=CC=C1)* 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- JFLKFZNIIQFQBS-FNCQTZNRSA-N trans,trans-1,4-Diphenyl-1,3-butadiene Chemical group C=1C=CC=CC=1\C=C\C=C\C1=CC=CC=C1 JFLKFZNIIQFQBS-FNCQTZNRSA-N 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- LGQXXHMEBUOXRP-UHFFFAOYSA-N tributyl borate Chemical compound CCCCOB(OCCCC)OCCCC LGQXXHMEBUOXRP-UHFFFAOYSA-N 0.000 description 1
- AJSTXXYNEIHPMD-UHFFFAOYSA-N triethyl borate Chemical compound CCOB(OCC)OCC AJSTXXYNEIHPMD-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
- C07C13/62—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with more than three condensed rings
- C07C13/66—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with more than three condensed rings the condensed ring system contains only four rings
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- C07C15/20—Polycyclic condensed hydrocarbons
- C07C15/27—Polycyclic condensed hydrocarbons containing three rings
- C07C15/28—Anthracenes
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- C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
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- C07C43/257—Ethers having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings
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- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- 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
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- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
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- H10K85/622—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing four rings, e.g. pyrene
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- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/626—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
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- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
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- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/24—Anthracenes; Hydrogenated anthracenes
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- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/26—Phenanthrenes; Hydrogenated phenanthrenes
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- C07C2603/40—Ortho- or ortho- and peri-condensed systems containing four condensed rings
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- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/40—Ortho- or ortho- and peri-condensed systems containing four condensed rings
- C07C2603/42—Ortho- or ortho- and peri-condensed systems containing four condensed rings containing only six-membered rings
- C07C2603/50—Pyrenes; Hydrogenated pyrenes
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- 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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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1014—Carbocyclic compounds bridged by heteroatoms, e.g. N, P, Si or B
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/10—Transparent electrodes, e.g. using graphene
- H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
- H10K2102/103—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising indium oxides, e.g. ITO
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- 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
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- H10K85/324—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising aluminium, e.g. Alq3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/917—Electroluminescent
Definitions
- the present invention relates to an organic electroluminescent device and an anthracene derivative, and more particularly, to an organic electroluminescent device having high luminous efficiency and long life.
- the present invention relates to an anthracene derivative that achieves this.
- E organic electroluminescent device
- a fluorescent substance is generated by the recombination energy of holes injected from an anode and electrons injected from a cathode by applying an electric field. It is a self-luminous element using the principle of emitting light.
- C. Tang, Kodak's C. W. Tang et al. Report on low-voltage driven organic EL devices with stacked devices (CW Tang, SA Vansly ke, Applied Physics Letters, 51 rolls) , Pp. 913, pp. 1987), research on organic EL devices using organic materials as constituent materials has been actively conducted. Tang et al.
- the element structure of the organic EL element includes a hole transport (injection) layer, a two-layer electron transport / emission layer, or a hole transport (injection) layer, an emission layer, and an electron transport (injection) layer
- the three-layer type is well known.
- the device structure and formation method are devised.
- a light emitting material such as a chelate complex such as tris (8-quinolinolate) aluminum complex, a coumarin derivative, a tetraphenylbutadiene derivative, a bisstyrylarylene derivative, and an oxaziazole derivative are known.
- a chelate complex such as tris (8-quinolinolate) aluminum complex
- a coumarin derivative such as tris (8-quinolinolate) aluminum complex
- a coumarin derivative such as a tetraphenylbutadiene derivative
- a bisstyrylarylene derivative such as an oxaziazole derivative
- Japanese Patent Application Laid-Open No. H08-012600 discloses a device using a fluoranthracene derivative as a light emitting material. Although such anthracene derivatives are used as blue light-emitting materials, it has been desired to extend the life of the device. Further, an element material having a fluoranthene group at the 9,10 positions of anthracene is disclosed in Japanese Patent Application Laid-Open No. 2001-257704. Such anthracene derivatives are also used as a blue light-emitting material, but there has been a demand for an improvement in device life. Further, Japanese Patent Application Laid-Open No. 2000-187,776 discloses that various anthracene derivatives are used as a hole transport material. However, its synthesis has not been actually performed, and its evaluation as a luminescent material ⁇ I ⁇ has not yet been made. Disclosure of the invention
- the present invention has been made to solve the above problems, and has as its object to provide an organic EL device having high luminous efficiency and a long life, and an anthracene derivative realizing the same.
- the present inventors have conducted intensive studies in order to achieve the above object, and have found that a compound having an anthracene structure having an asymmetric specific structure represented by the following general formula (1) or (2) is converted to an organic compound.
- the inventors have found that an organic EL device having a high luminous efficiency and a long lifetime can be obtained when used as a luminescent material for an EL device, and have completed the present invention. That is, the present invention provides an organic EL device in which one or more organic thin-film layers including at least a light-emitting layer are sandwiched between a cathode and an anode. At least one layer provides an organic EL device containing the anthracene derivative represented by the following general formula (1) or (2) alone or as a component of a mixture.
- Ar is a substituted or unsubstituted fused aromatic group having 10 to 50 nuclear carbon atoms.
- a r ′ is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms.
- X is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 5 to 50 nuclear atoms, a substituted or unsubstituted carbon number of 1 to 5 Alkyl group having 0, substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, substituted or unsubstituted aralkyl group having 6 to 50 carbon atoms, substituted or unsubstituted having 5 to 50 carbon atoms Aryloxy group, substituted or unsubstituted aryloxy group having 5 to 50 carbon atoms, substituted or unsubstituted alkoxycarbonyl group having 1 to 50 carbon atoms, carboxyl group, halogen atom, cyano group, nitro group, hydroxyl Group.
- a, b and c are each an integer of 0-4.
- n! Is an integer of ⁇ 3. If n is 2 or more,
- anthracene derivative represented by the following general formula (2).
- Ar is a substituted or unsubstituted fused aromatic group having 10 to 50 nuclear carbon atoms.
- a r ′ is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms.
- X is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 5 to 50 nuclear atoms, a substituted or unsubstituted carbon number of 1 to 5 Alkyl group having 0, substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, substituted or unsubstituted aralkyl group having 6 to 50 carbon atoms, substituted or unsubstituted aralkyl group having 5 to 50 carbon atoms.
- Aryloxy group substituted or unsubstituted aryloxy group having 5 to 50 nuclear atoms, substituted or unsubstituted alkoxycarbonyl group having 1 to 50 carbon atoms, carboxyl group, halogen atom, cyano group, toro group, hydroxyl Group.
- a and b are each an integer of 0-4.
- n is an integer of 1-3. If n is 2 or more,
- the organic EL device of the present invention is an organic EL device in which one or more organic thin film layers including at least a light-emitting layer are sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers has the general structure described above.
- the anthracene derivative represented by the formula (1) is contained alone or as a component of a mixture.
- Ar is a substituted or unsubstituted condensed aromatic group having 10 to 50 nuclear carbon atoms.
- Examples of the condensed aromatic group include 1-naphthyl group, 2-naphthyl group, 1-anthryl group, 2-anthryl group, 9-anthryl group, 1-phananthryl group, 2-pentanthryl group, 3-pentanthryl group, 4 1-phenanthryl group, 9-phenanthryl group, 1-naphthacenyl group, 2-naphthacenyl group, 9-naphthacenyl group, 1-pyrenyl group, 2-pyrenyl group, 4-pyrenyl group, 3-methyl-2-naphthyl group, 4-methyl Examples thereof include 11-naphthyl group and 4-methyl-11-anthryl group.
- (A r is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms.).
- a r is, for example, a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a 1-anthryl group, a 2-anthryl group, a 9-anthryl group, a 1-phenanthryl group, a 2-pentanthryl group, a 3-pentanthryl group , 4-phenanthryl group, 9-1 Phenanthryl group, 1-naphthacenyl group, 2-naphthacenyl group, 9-naphthacenyl group, 1-pyrenyl group, 2-pyrenyl group, 4-pyrenyl group, 2-biphenylyl group, 3-biphenylyl group, 4-biphenyl Ruyl group, p-Ethylphenyl 4-yl group, p-Terphenyl-3-yl group, p-Terphenyl-2-yl group, m-Ethylphenyl 4-yl group,
- a r ′ is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms.
- the aromatic group include phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, and 3-phenanthryl.
- X is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 5 to 50 nuclear atoms, Substituted alkyl group having 1 to 50 carbon atoms, substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, substituted or unsubstituted aralkyl group having 6 to 50 carbon atoms, substituted or unsubstituted nucleus Aryloxy group having 5 to 50 atoms, substituted or unsubstituted arylthio group having 5 to 50 atoms, substituted or unsubstituted carboxyl group having 1 to 50 carbon atoms, halogen atom, cyano Group, nitro group and hydroxyl group.
- Examples of the substituted or unsubstituted aromatic group for X include phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl group, 3-phenanthryl group, 4-phenanthryl group, 9-phenanthryl group, 1-naphthacenyl group, 2-naphthacenyl group, 9-naphthacenyl group, 1-pyrenyl group, 2-pyrenyl group, 4-pyrenyl group, 2-biphenylyl group, 3-biphenylyl group, 4-biphenylyl group, p-phenyl-4-yl group, p-phenyl-1-yl 3-pyl group, p-fuyl-2-yl group Leu-2-yl group, m-terphenyl-4-yl group, m-terphenyl-3-yl group, m-
- Examples of the substituted or unsubstituted aromatic heterocyclic group for X include: 1 monopyrrolyl group, 2-pyrrolyl group, 3_pyrrolyl group, pyrazur group, 2-pyridinyl group, 3-pyrrolyl group Pyridinyl group, 4-pyridinyl group, 1-indolyl group, 2—indolyl group, 3—indolyl group, 4 _indolyl group, 5—indolyl group, 6—indolyl group, 7—indolyl group, 1—isoindolyl group, 2— Isoindolyl, 3-isoindolyl, 4-isoindolyl, 5-isoindolyl, 6-isoindolyl, 7-isoindolyl, 2-furyl, 3-furyl, 2-benzofuranyl, 3-benzofuranyl, 4 Benzofuranyl, 5-benzofuranyl, 6-benzo
- 8-phenanthroline_5-yl group 2,8-phenanthroline-1-6-yl group, 2,8-phenanthroline-1 7-yl group, 2,8-phenanthroline-1-9-yl group, 2,8-phenanthroline 1 10-yl group, 2,7-phenanthroline-1-yl group,, 7-phenanthroline-1-3-yl group, 2,7-phenanthroline-4-yl group, 2,7-phenanthroline-1 5-y 2,7-phenanthroline-18-yl group, 2,7-phenanthroline-18-yl group, 2,7-phenanthroline-19-yl group, 2,7-phenanthroline-1 10-yl group Phenyl, 1-phenazinyl, 2-phenazulyl, 1-phenothiazinyl, 2-phenothiazidinyl, 3-phenothiazinyl, 4-phenothiazinyl, 10-phenothiazinyl, 1-phenyl ⁇ noxazinyl group, 2-punoxazinyl group
- Examples of the substituted or unsubstituted alkyl group in X include methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, s-butyl group, isobutyl group, t-butyl group, n-pentyl group, n —Hexyl group, n-heptyl group, n-octyl group, hydroxymethyl group, 1-hydroxyethyl group, 2-hydroxyethyl group, 2-hydroxyisobutyl group, 1,2-dihydroxyethyl group, 1,3-dihydroxyisopropyl group, 2,3-dihydroxy-t-butyl group, 1,2,3-trihydroxypropyl group, chloromethyl group, 1-chloroethyl group, 2-chloroethyl group, 2 _ Isobutyl isobutyl, 1,2-dichloroethyl, 1,3-dichloroisopropyl
- a substituted or unsubstituted alkoxy group is a group represented by OY.
- Y include a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, an s-butyl group, and an isobutyl group.
- substituted or unsubstituted aralkyl groups include benzyl, 1-phenylethyl, 2-phenylethyl, 1-phenylisopropyl, 2-phenylisopropyl, phenyl-t-butyl, ⁇ -naphthylmethyl Group, 1- ⁇ -naphthylethyl group, 2- ⁇ -naphthylethyl group, 1- ⁇ -naphthylisopropyl group, 1- ⁇ -naphthylisopropyl group, 3-naphthylmethyl group, I- ⁇ -naphthylethyl group, 2-) 8-naphthylethyl group, 11-naphthylisopropyl group, 2_ ⁇ -naphthylisopropyl group, 1_pyrrolylmethyl group, 2- (1-pyrrolyl) ethyl group, ⁇ -methylbenzyl group
- a substituted or unsubstituted aryloxy group is represented as 1 0 Y, and examples of ⁇ , Phenyl, 1-naphthyl, 2-naphthyl, 1 anthryl, 2-anthryl, 9 anthryl, 1 phenanthryl, 2-phenanthryl, 3-phenylanthryl, 4-phenylanthryl, 9 1-phenanthryl group, 1-naphthacenyl group, 2-naphthacenyl group, 9-naphthacenyl group, 1-pyrenyl group, 2 _pyrenyl group, 4-pyrenyl group, 2-biphenylyl group, 3-biphenylyl group, 4-1 Biphenylyl group, p-terphenyl-1-yl group, p-nitrophenyl-3-yl group, p-terphenyl-2-yl group, m-terphenyl-4-yl group, m-nitrophenyl-3-yl Group
- a substituted or unsubstituted arylthio group is represented by one SY ", and examples of Y" include a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a 1-anthryl group and a 21-anthryl group , 9-anthryl, 1-phananthryl, 2-phenanthryl, 3-phenanthryl, 4-fananthryl, 9-fananthryl, 1-naphthacenyl, 2-naphthacenyl, 9-naphthacenyl, 1-pyrenyl, 2—pi Renyl, 4-pyrenyl, 2-biphenyl, 3-biphenyl, 4-biphenyl, p-phenyl 4-yl, p-phenyl 3-yl Group, p-vinyl 1-yl, m-vinyl 4-yl, m-vinyl 3-yl, m-vinyl 2-yl,
- a substituted or unsubstituted alkoxycarbonyl group is represented by C 0 0 Z, and examples of Z include methyl, ethyl, propyl, isopropyl, n-butyl, s-butyl, and isobutyl.
- Examples of the divalent group forming a ring include a tetramethylene group, a pentamethylene group, a hexamethylene group, a diphenylmethane 1,2′-diyl group, a diphenylethane 1,3,3,1-diyl group, and a diphenyl group. And propane-1,4,1-diyl group.
- halogen atom examples include fluorine, chlorine, bromine and iodine.
- a, b and c are each an integer of 0 to 4.
- n is an integer of 1-3. When n is 2 or more, the groups in [] may be the same or different.
- Examples of the substituent in the groups represented by Ar, Ar ′ and X include a halogen atom, a hydroxyl group, a nitro group, a cyano group, an alkyl group, an aryl group, and a cycloalkyl group.
- Specific examples of the anthracene derivative represented by the general formula (1) of the present invention are shown below, but are not limited to these exemplified compounds.
- Me represents a methyl group and Bu represents a butyl group.
- the anthracene derivative represented by the above general formula (2) of the present invention is a novel compound among those included in the above general formula (1).
- Ar is a substituted or unsubstituted condensed aromatic group having 10 to 50 nuclear carbon atoms.
- a r ′ is a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms.
- the general formula (2) represents a substituted or unsubstituted aromatic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 5 to 50 nuclear atoms, a substituted or unsubstituted Alkyl group having 1 to 50 carbon atoms, substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, substituted or unsubstituted aralkyl group having 6 to 50 carbon atoms, number of substituted or unsubstituted nuclear atoms 5-50 aryloxy group, substituted or unsubstituted nuclear atom number 5-50 arylthio group, substituted or unsubstituted alkoxycarbonyl group having 1-50 carbon atom, carboxyl group, halogen atom , A cyano group, a nitro group, and a hydroxyl group. ,
- the substituents in the groups represented by Ar, Ar ′ and X include a halogen atom, a hydroxyl group, a nitro group, a cyano group, an alkyl group, an aryl group, a cycloalkyl group, an alkoxy group, and an aromatic heterocyclic ring.
- a halogen atom a hydroxyl group, a nitro group, a cyano group, an alkyl group, an aryl group, a cycloalkyl group, an alkoxy group, and an aromatic heterocyclic ring.
- a and b are each an integer of 0 to 4, and preferably 0 to 1.
- n is an integer of 1-3. When n is 2 or more, the groups in [] may be the same or different.
- anthracene derivative represented by the general formula (2) of the present invention include: Among the specific examples of the general formula U), (AN1) to (AN4), (AN7) to (AN14), (AN17) to (AN24), (AN27) to (AN36) ), (AN39) to (AN4.3) and (AN46) to (AN48), but are not limited to these exemplified compounds.
- anthracene derivative represented by the general formula (2) of the present invention is preferably used as a material for an organic EL device.
- the anthracene derivative of the general formula (1) or (2) used in the organic EL device of the present invention is commercially available arylporic acid or arylporonic acid synthesized by a known method or a derivative thereof, and halogen.
- the compound can be synthesized by appropriately combining a Suzuki ripple reaction, a halogenation reaction, and a boration reaction. The synthesis scheme is shown below.
- R 1 , R 2 hydroxyl group or
- R 1 and R 2 combine to form a ring
- the reaction is usually carried out under normal pressure under an inert atmosphere of nitrogen, argon, helium or the like, but may be carried out under pressurized conditions if necessary.
- the reaction temperature is in the range of 15 to 300 ° C, particularly preferably 30 to 200 ° C.
- reaction solvent examples include water, aromatic hydrocarbons such as benzene, toluene, and xylene; ethers such as 1,2-dimethoxetane, getyl ether, methyl tert-butyl ether, tetrahydrofuran, and dioxane; pentane; Saturated hydrocarbons such as xane, heptane, octane and cyclohexane, dichloromethane, dichloromethane, carbon tetrachloride, halogens such as carbon tetrachloride, 1,2-dichloroethane, 1,1,1-trichloroethane, acetonitrile, benzone Nitriles such as nitriles, esters such as ethyl acetate, methyl acetate and butyl acetate, amides such as N, N-dimethylformamide, N, N-dimethylacetamide and N-methyl
- toluene, 1,2, -dimethoxetane, dioxane, and water are preferred.
- the amount of the solvent to be used is generally 3 to 50 times by weight, preferably 4 to 20 times by weight, relative to arylpolyacid or a derivative thereof.
- Examples of the base used for the reaction include sodium carbonate, potassium carbonate, sodium hydroxide hydroxide, sodium hydrogen carbonate, sodium hydrogen carbonate, magnesium carbonate, lithium carbonate, potassium fluoride, cesium fluoride, and chloride. Cesium, cesium bromide, cesium carbonate, potassium phosphate, sodium methoxide, potassium t-butoxide, sodium t-butoxide, lithium t-butoxide, and the like are preferable, and sodium carbonate is preferable.
- the amount of these bases to be used is generally 0.7 to 10 molar equivalents, preferably 0.9 to 6 molar equivalents, relative to arylpoic acid or a derivative thereof.
- Examples of the catalyst used in the reaction include tetrakis (triphenylphosphine) palladium, dichlorobis (triphenylphosphine) palladium, dichloro [bis (diphenylphosphino) ethane] palladium, and dichloro [bis (diphenylphosphino) phenyl] Pan] Palladium catalyst such as palladium, dichloro [bis (diphenylphosphino) butane] palladium, dichloro [bis (diphenylphosphino) phene] palladium, tetrakis (triphenylphosphine) nigel, dichlorobis (trif Nickel, dichloro [bis (diphenylphosphino) ethane] Nickel, dichloro [bis (diphenylphosphino) phenyl.
- Nickel catalysts such as ronon] nickel, dichloro [bis (diphenylphosphino) butane] nigel, and dichloro [bis (diphenylphosphino) phenoctene] nickel, and the like, preferably tetrakis (triphenyl) Nylphosphine) is palladium.
- the amount of these catalysts to be used is generally 0.01 to 1 molar equivalent, preferably 0.01 to 0.1 molar equivalent, relative to the halogenated anthracene derivative.
- halogen in the halogenated anthracene derivative examples include an iodine atom, a bromine atom, a chlorine atom and the like, and preferably an iodine atom and a bromine atom.
- the halogenating agent in the halogenation reaction is not particularly limited.
- N-halogenated succinic acid imide is preferably used.
- the amount of the halogenating agent to be used is generally 8 to 10 molar equivalents, preferably 1 to 5 molar equivalents, relative to the anthracene derivative.
- the reaction is usually performed in an inert solvent under an inert atmosphere such as nitrogen, argon, and helium.
- inert solvent examples include N, N-dimethylformamide, N, N-dimethylacetamide, N-methylpyrrolidone, dimethylsulfoxide, carbon tetrachloride, cyclobenzene, dichlorobenzene, nitrobenzene, Examples thereof include toluene, xylene methyl sorb, ethyl sorb, water and the like, and preferred are N, N-dimethylformamide and N-methylpyrrolidone.
- solvent Is usually 3 to 50 times by weight, preferably 5 to 20 times by weight, based on the anthracene derivative.
- the reaction temperature is usually carried out at 0 ° (: ⁇ 200 ° C, preferably 20 °; 1.1.20 ° C).
- the boration reaction is carried out by a known method (edited by The Chemical Society of Japan, Experimental Chemistry Lecture, 4th Edition, Vol. 24, pages 61 to 90, page 0 (3 ⁇ 46111., ⁇ 01.60, 7508 '(1995), etc.)).
- a reaction via a lithiation of a halogenated anthracene derivative or a Grignard reaction the reaction is usually performed in an inert atmosphere of nitrogen, argon, helium, etc., and the reaction solvent is inert.
- Solvents are used, for example, saturated hydrocarbons such as pentane, hexane, heptane, octane and cyclohexane, 1,2-dimethyloxetane, getyl ether, methyl-t-butylether, tetrahydrofuran, dioxane, etc.
- Aromatic hydrocarbons such as ethers, benzene, toluene, and xylene can be used singly or as a mixed solvent, preferably dimethyl ether.
- the amount of the solvent is usually 3 to 50 times by weight, preferably 4 to 20 times by weight of the halogenated anthracene derivative.
- the lithifying agent examples include alkyl metal reagents such as n-butyllithium, t-butyllithium, phenyllithium, and methyllithium, and amide bases such as lithium diisopropylamide and lithium pistrimethylsilylamide. And preferably n-butyllithium.
- the Grignard reagent can be prepared by reacting a halogenated anthracene derivative with metal magnesium.
- the trialkyl borate as a borate oxidizing agent include trimethyl borate, triethyl borate, triisopropyl borate, tributyl borate and the like, and preferably trimethyl borate and triisopropyl borate. .
- the amounts of the lithiating agent and the metallic magnesium are usually 1 to 10 molar equivalents, preferably 1 to 2 molar equivalents, respectively, based on the halogenated anthracene derivative, and the amount of the trialkyl borate used is It is usually 1 to 10 molar equivalents, preferably 1 to 5 molar equivalents, based on the anthracene derivative.
- the reaction temperature is usually 100- PT / JP2003 / 010402
- the temperature is 50 ° C, preferably 75 to 10 ° C.
- the light emitting layer contains the anthracene derivative represented by the general formula (1) or (2) as a main component.
- the light emitting layer further contains an arylamine compound and / or a styrylamine compound.
- styrylamine compound a compound represented by the following general formula (A) is preferable.
- Ar 2 is Fuweniru group, Bifuweniru group, Tafuweniru group, a stilbene group, a group selected from distyryl Rua aryl group, Ar 3 and Arufaganma 4 is a hydrogen atom or carbon atoms each 6-20 An aromatic group, and Ar 2 , Ar 3 and Ar 4 may be substituted, p is an integer of 1 to 4. More preferably, at least one of Ar 3 or Ar 4 is substituted with a styryl group. ing. )
- examples of the aromatic group having 6 to 20 carbon atoms include a phenyl group, a naphthyl group, an anthranyl group, a phenanthryl group, and a terphenyl group.
- arylamine compound a compound represented by the following general formula (B) is preferable.
- a r 5 ⁇ A r 7 is a substituted or unsubstituted Ariru group with carbon number. 5 to 4 0.
- Q is an integer from 1 to 4.
- the aryl group having a nuclear carbon number of 5 to 40 includes, for example, a phenyl group, a naphthyl group, an anthranyl group, a phenanthryl group, a pyrenyl group, a coronyl group, a biphenyl group, a terphenyl group, a pyrrolyl group, Furanyl group, thiophenyl group, benzothiophenyl group, oxaziazolyl group, diphenylanthranyl group, indril group, carbazolyl group, pyridyl group, benzoquinolyl group, fluoranthenyl group, acenaphthofluoranthyl group, stilbene group, etc.
- substituents of this aryl group include alkyl groups having 1 to 6 carbon atoms (ethyl group, methyl group, i-propyl group, n-propyl group, s-butyl group, t-butyl group).
- Anode / organic semiconductor layer / luminescent layer / adhesion improving layer / cathode (8) Anode / hole injection layer / hole transport layer / emission layer / electron injection layer / cathode
- the configuration (8) is usually preferably used, but is not limited to these.
- This organic EL device is usually manufactured on a light-transmitting substrate.
- the light-transmitting substrate is a substrate that supports the organic EL element.
- the light-transmitting substrate preferably has a light transmittance of 50% or more in the visible region of 400 to 700 nm, and a more smooth substrate. Preferably, it is used.
- a translucent substrate for example, a glass plate, a synthetic resin plate or the like is suitably used.
- the glass plate include a plate formed of soda-lime glass, norm-strontium-containing glass, lead glass, aluminosilicate glass, borate glass, normium borate glass, and quartz.
- the synthetic resin plate include plates of polycarbonate resin, acryl resin, polyethylene terephthalate resin, polyether sulfide resin, and polysulfone resin.
- anode those using a metal, an alloy, an electrically conductive compound or a mixture thereof having a large work function (4 eV or more) as an electrode material are preferably used.
- an electrode material metals such as Au, Cu l, I TO (I Nji ⁇ mucin O sulfoxide), Sn0 2, Z nO, include conductive material such as I n-Z n-0 Can be
- a thin film can be formed from these electrode substances by a method such as a vapor deposition method or a sputtering method.
- This anode is used for the light emitting layer When light emitted from the anode is taken out from the anode, it is desirable that the anode has characteristics such that the transmittance of the anode with respect to the light emission is greater than 10%.
- the sheet resistance of the anode is preferably several hundreds ⁇ / port or less. Further, the thickness of the anode depends on the material, but is usually selected in the range of 10 nm to 1 ⁇ , preferably 10 to 200 nm.
- a metal having a low work function (4 eV or less), an alloy, an electrically conductive compound, or a mixture thereof is used as an electrode material.
- electrodes materials include sodium, sodium ⁇ mu potassium alloy, Maguneshiu arm, lithium, magnesium 'silver alloy, aluminum / aluminum oxide, A1 / L i 2 ⁇ , A 1 / L i 0 2 , A1 / LiF, aluminum-lithium alloy, aluminum, rare earth metal, etc.
- This cathode can be manufactured by forming a thin film from these electrode substances by a method such as vapor deposition or sputtering.
- the transmittance of the cathode with respect to the emitted light be greater than 10%.
- the sheet resistance as the cathode is preferably several hundred ⁇ / port or less, and the film thickness is usually 1 ′ Onm Onl, preferably 50 ⁇ 200 nm.
- a chalcogenide layer, a metal halide layer or a metal oxide layer (hereinafter, referred to as a surface layer) is formed on at least one surface of the pair of electrodes thus manufactured. It is preferable to arrange. Specifically, a chalcogenide (including oxide) layer of a metal such as gay or aluminum is provided on the anode surface on the light emitting layer side, and a metal halide layer or metal oxide layer is provided on the cathode surface on the light emitting layer side. It is good to arrange. Thereby, the driving can be stabilized.
- the chalcogenide include, for example, SiOx (1 ⁇ X ⁇ 2), A1Ox (1 ⁇ X ⁇ l.5), SiON, SiAlON, and the like. , for example, L i F, MgF 2, CaF 2, etc. fluorides of rare earth metals. properly preferred, as the metal oxide, for example, C s 2 0, L iz 0 , Mg 0, S r 0402
- a mixed region of an electron transfer compound and a reducing dopant or a hole transfer compound and an oxidizable dopant is formed on at least one surface of the pair of electrodes manufactured as described above. It is also preferable to arrange a mixed region. By doing so, the electron transfer compound is reduced and becomes an anion, so that the mixed region can more easily inject and transfer electrons to the light emitting layer.
- the hole transfer compound is oxidized and becomes a cation, so that the mixed region can more easily inject and transfer holes to the light emitting layer.
- Preferred oxidizing dopants include various Lewis acids and axceptor compounds.
- Preferred reducing dopants include Al-metals, Al-metal compounds, Al-earth metals, rare earth metals and their compounds.
- the light emitting layer comprises:
- Injection function A function that can inject holes from the anode or hole injection layer when an electric field is applied, and can inject electrons from the cathode or electron injection layer.
- Light-emitting function Provides a field for recombination of electrons and holes, and has the function of connecting this to light emission.
- the light emitting layer is particularly preferably a molecular deposition film.
- the molecular deposition film is a thin film formed by deposition from a material compound in a gas phase or a film formed by solidification from a material compound in a solution state or a liquid phase. Films can be distinguished from thin films (molecule accumulation films) formed by the LB method by differences in the cohesive structure and higher-order structure, and the resulting functional differences.
- the light emitting layer can be formed.
- the light-emitting layer may contain a known light-emitting material other than the light-emitting material of the present invention, if desired, as long as the object of the present invention is not impaired.
- a light emitting layer containing another known light emitting material may be laminated on the light emitting layer containing.
- the hole injection / transport layer is a layer that assists hole injection into the light-emitting layer and transports it to the light-emitting region. It has a high hole mobility and usually has an ionization energy of 5.5 eV or less. small. Electric field application of such materials are preferred which can transport holes to the emitting layer at a lower electric field intensity as the hole injecting and transporting layer, further hole mobility of, for example, 1 0 4 ⁇ 1 0 s V / cm sometimes, those at least 1 0- 6 cm 2 / V 's are preferred.
- any of materials conventionally used as a charge transporting material for holes in a photoconductive material and known materials used in a hole injection layer of an organic EL device can be used. You can select and use one.
- the hole injecting / transporting material may be formed into a thin film by a known method such as a vacuum evaporation method, a spin coating method, a casting method, and an LB method.
- the thickness of the hole injection / transport layer is not particularly limited, but is usually 5 nm to 5 m.
- the electron injection layer and the transport layer are layers that help inject electrons into the light emitting layer and transport the electrons to the light emitting region.
- the electron mobility is high, and the adhesion improving layer is formed in the electron injection layer.
- This is a layer made of a material having good adhesion to the cathode.
- a metal complex of 8-hydroxyquinoline or a derivative thereof is preferable.
- Specific examples of the metal complex of 8-hydroxyquinoline or a derivative thereof include a metal chelate oxinoide compound containing a chelate of quinoxin (generally 8-quinolinol or 8-hydroxyquinoline), for example, tris (8-quinolinol) al Minimum can be used as the electron injection material.
- an insulating thin film layer is placed between the pair of electrodes. You may enter.
- Examples of the material used for the insulating layer include aluminum oxide, lithium fluoride, lithium oxide, cesium fluoride, cesium oxide, magnesium oxide, magnesium fluoride, calcium oxide, calcium fluoride, aluminum nitride, titanium nitride, and acid.
- Examples include silicon oxide, germanium oxide, silicon nitride, boron nitride, molybdenum oxide, ruthenium oxide, and vanadium oxide. These mixtures and laminates may be used.
- an anode, a light emitting layer, a hole injection layer if necessary, and a necessary (electron injection layer are formed by the above materials and methods.
- the cathode may be formed, and the organic EL device can be manufactured in the reverse order from the cathode to the anode.
- an organic EL device having a configuration in which an anode, a hole injection layer, a light emitting layer, a Z electron injection layer, and a cathode are sequentially provided on a light-transmitting substrate will be described.
- a thin film made of an anode material is formed on a suitable translucent substrate by a vapor deposition method or a sputtering method so as to have a thickness of 1 m or less, preferably 10 to 200 nm.
- a hole injection layer is provided on the anode.
- the hole injection layer can be formed by vacuum deposition, spin coating, casting, LB, etc. as described above, but a uniform film is easily obtained and pinholes are generated. It is preferable to form the film by a vacuum deposition method from the viewpoint of difficulty.
- the deposition conditions vary depending on the compound to be used (the material of the hole injection layer), the crystal structure and the recombination structure of the target hole injection layer, and the like.
- a light emitting layer is provided on the hole injection layer.
- This light-emitting layer is also formed using the light-emitting material according to the present invention by vacuum evaporation, sputtering, spin coating, or casting. Although it can be formed by reducing the thickness of the light-emitting material by such a method as above, it is preferable to form the light-emitting material by a vacuum evaporation method from the viewpoint that a uniform film is easily obtained and pinholes are hardly generated.
- the deposition conditions vary depending on the compound used, but can be generally selected from the same condition range as the formation of the hole injection layer.
- the thickness is preferably in the range of 10 to 40 nm.
- an electron injection layer is provided on the light emitting layer.
- the film is formed by a vacuum evaporation method because it is necessary to obtain a uniform film.
- the deposition conditions can be selected from the same condition ranges as for the hole injection layer and the light emitting layer.
- the cathode is laminated to obtain an organic EL device.
- the cathode is made of metal, and can be formed by vapor deposition or sputtering. However, in order to protect the underlying organic layer from damage during film formation, a vacuum deposition method is preferable. In the production of the organic EL device described above, it is preferable to produce the anode to the cathode consistently by a single evacuation.
- the anode When a DC voltage is applied to this organic EL device, the anode can be made to have a polarity and the cathode can be made to have a single polarity, and a voltage of 3 to 40 V can be applied to emit light. Even if a voltage is applied in the opposite polarity, no current flows and no light emission occurs. Further, when an AC voltage is applied, uniform light emission is observed only when the anode has ten polarities and the cathode has one polarity. In this case, the waveform of the applied AC may be arbitrary.
- poronic acid triisopropyl ester manufactured by Tokyo Kasei
- 2N hydrochloric acid 20N hydrochloric acid at 40 ° C or less at 10 ° C or less!
- 10 milliliters of toluene were added. This was separated, dried over sodium sulfate, concentrated under reduced pressure, hexane was added, and the precipitated crystals were collected by filtration.
- Nil fluoranthene 5.13 g, tetrakis (triphenylphosphine) palladium (0) 0.33 g (manufactured by Tokyo Kasei Co., Ltd.), 1,2-dimethoxetane 60 milliliter (manufactured by Hiroshima Wako) and sodium carbonate 4.55 g (Hiroshima Wako) was dissolved in 21 milliliters of water, and the mixture was heated and stirred for 24 hours while refluxing. After the reaction, the mixture was cooled to room temperature, and the precipitated crystals were collected by filtration. This compound was purified by column chromatography to obtain 3.3 g of a pale yellow solid.
- Mouthphenyl) naphthalene 4.05 g, tetrakis (triphenylphosphine) palladium (0) 0.33 g (manufactured by Tokyo Kasei), 1,2-dimethoxyxetane 60 milliliter (manufactured by Hiroshima Wako) and sodium carbonate
- a solution prepared by dissolving 4.55 g (manufactured by Hiroshima Wako) in 21 milliliters of water was added thereto, and the mixture was heated and stirred for 24 hours while refluxing. After the reaction, the reaction mixture was cooled to room temperature, and the precipitated crystals were collected by filtration. This compound was purified by column chromatography to obtain 3.6 g of a pale yellow solid.
- Example 5 (manufacture of organic EL device)
- TPD2332 film 25 mm ⁇ 75 mm ⁇ 1.1 mm thick glass substrate with IT ⁇ transparent electrode (manufactured by Geomatic) was subjected to ultrasonic cleaning in isopropyl alcohol for 5 minutes, and then UV ozone cleaning for 30 minutes.
- the glass substrate with the transparent electrode lines after washing is mounted on a substrate holder of a vacuum deposition apparatus.
- the transparent electrode lines are formed on the surface on the side where the transparent electrode lines are formed so as to cover the transparent electrodes.
- N'-bis (N, N, diphenyl 4-aminophenyl) 1 N, N-diphenyl 4, 4, 4, diamino-11, 1-biphenyl film hereinafter referred to as TPD2332 film
- This TPD232 film functions as a hole injection layer. Subsequently, the following N, N, N,, N'-tetra (4-biphenyl) diaminobiphenylene film (hereinafter referred to as TBDB film) with a film thickness of 20 nm was formed on the -TPD2332 film. . This film functions as a hole transport layer. Further, a compound (AN 8) having a thickness of 4 O nm as a light emitting material was deposited on the TBDB film by vapor deposition.
- This film functions as a light emitting layer.
- An 108q film having a thickness of 1011111 was formed on this film.
- a reducing dopant Li Li source: manufactured by SAES Getter One
- Alq Alq
- Alq Alq: Li film (thickness 1 Onm) is formed as an electron injection layer (cathode).
- a metal A1 was vapor-deposited on the Alq: Li film to form a metal cathode, thereby manufacturing an organic EL device.
- the luminous efficiency and the initial luminance were measured with a 100 nit device to determine the half life of the device under a normal use environment. Table 1 shows the results.
- An organic EL device was manufactured in the same manner as in Example 5 except that the compounds described in Table 1 were used instead of AN8 as the luminescent material, and the luminous efficiency and the initial luminance were set to 10 OOnit in a normal operating environment. The half-life below was measured. Table 1 shows the results.
- Example 9 manufactured of organic EL element).
- Example 5 an organic EL device was manufactured in the same manner except that the following aromatic amine D2 was used in place of the amine compound D1 having a styryl group, and the luminous efficiency and the initial luminance were set to lOOunit. The half-life was measured under normal use environment. Table 1 shows the results.
- Example 1 was repeated except that 1- (4-butamorphinyl) naphthalene was used instead of 2- (4-promophenyl) naphthalene, to obtain 7.8 g of a pale yellow solid.
- Example 12 (Synthesis of Compound (AN49)) Example 1 was repeated, except that 2- (3-bromounyl) naphthalene was used instead of 2- (4-bromophenyl) naphthalene, to obtain 6.9 g of a pale yellow solid.
- An organic EL device was manufactured in the same manner as in Example 5 except that the compounds described in Table 1 were used instead of AN8 as the luminescent material, and the luminous efficiency and the initial luminance were set to 10 OOnit in a normal operating environment. The half-life below was measured. The results are shown in Table 1. Comparative Example 1 (manufacture of organic EL device)
- An organic EL device was manufactured in the same manner as in Example 5, except that an 1 was used instead of AN 8 as the luminescent material, and the luminous efficiency and the initial luminance were 1000 ⁇ under a normal use environment. The half-life was measured. Table 1 shows the results.
- An organic EL device was manufactured in the same manner as in Example 5 except that an2 was used instead of AN8 as the light-emitting material, and the luminous efficiency and the initial luminance were reduced by half in a normal operating environment with 100 nm. The life was measured. Table 1 shows the results.
- the organic EL devices of Examples 5 to 9 and 13 to 15 had high luminous efficiency and extremely long life.
- the organic EL devices of Comparative Examples 1 and 2 had low luminous efficiency and short life.
- the organic EL device of the present invention and the organic EL device using the anthracene derivative of the present invention have high luminous efficiency and long life. Therefore, it is useful as an organic EL device that is expected to be used for a long time.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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JP2004530558A JP4041816B2 (ja) | 2002-08-23 | 2003-08-18 | 有機エレクトロルミネッセンス素子及びアントラセン誘導体 |
DE60330696T DE60330696D1 (de) | 2002-08-23 | 2003-08-18 | Organische elektrolumineszenzvorrichtung und anthracenderivat |
US10/524,825 US7839074B2 (en) | 2002-08-23 | 2003-08-18 | Organic electroluminescence device and anthracene derivative |
AT03792695T ATE452954T1 (de) | 2002-08-23 | 2003-08-18 | Organische elektrolumineszenzvorrichtung und anthracenderivat |
EP03792695.3A EP1553154B2 (en) | 2002-08-23 | 2003-08-18 | Organic electroluminescence device and anthracene derivative |
EP10184035.3A EP2261302B2 (en) | 2002-08-23 | 2003-08-18 | Organic electroluminescence device and anthracene derivative |
US12/902,452 US8318324B2 (en) | 2002-08-23 | 2010-10-12 | Organic electroluminescence device and anthracene derivative |
US13/482,031 US8785006B2 (en) | 2002-08-23 | 2012-05-29 | Organic electroluminescence device and anthracene derivative |
US14/301,865 US9583716B2 (en) | 2002-08-23 | 2014-06-11 | Organic electroluminescence device and anthracene derivative |
US15/405,028 US10217943B2 (en) | 2002-08-23 | 2017-01-12 | Organic electroluminescence device and anthracene derivative |
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JP2002-243545 | 2002-08-23 | ||
JP2002243545 | 2002-08-23 |
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US10/524,825 A-371-Of-International US7839074B2 (en) | 2002-08-23 | 2003-08-18 | Organic electroluminescence device and anthracene derivative |
US12/902,452 Continuation US8318324B2 (en) | 2002-08-23 | 2010-10-12 | Organic electroluminescence device and anthracene derivative |
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US (5) | US7839074B2 (ja) |
EP (3) | EP2261302B2 (ja) |
JP (3) | JP4041816B2 (ja) |
KR (2) | KR100946476B1 (ja) |
CN (2) | CN101628847B (ja) |
AT (2) | ATE555182T1 (ja) |
DE (1) | DE60330696D1 (ja) |
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