WO2007081058A1 - 高分子化合物およびそれを用いた高分子発光素子 - Google Patents
高分子化合物およびそれを用いた高分子発光素子 Download PDFInfo
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- WO2007081058A1 WO2007081058A1 PCT/JP2007/050746 JP2007050746W WO2007081058A1 WO 2007081058 A1 WO2007081058 A1 WO 2007081058A1 JP 2007050746 W JP2007050746 W JP 2007050746W WO 2007081058 A1 WO2007081058 A1 WO 2007081058A1
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- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- ZJMWRROPUADPEA-UHFFFAOYSA-N sec-butylbenzene Chemical compound CCC(C)C1=CC=CC=C1 ZJMWRROPUADPEA-UHFFFAOYSA-N 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 125000006318 tert-butyl amino group Chemical group [H]N(*)C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 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
- 125000001544 thienyl group Chemical group 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 1
- 125000006617 triphenylamine group Chemical group 0.000 description 1
- 125000005580 triphenylene group Chemical group 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000001018 xanthene dye Substances 0.000 description 1
- 150000003732 xanthenes Chemical class 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-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
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having a potential-jump barrier or a surface barrier
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/115—Polyfluorene; Derivatives thereof
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H10K85/30—Coordination compounds
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- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/549—Organic PV cells
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a polymer compound and a polymer light emitting device using the polymer compound. '' Background technology
- the light-emitting material include polyarylene pinylene having a triarylamine group in the side chain (US Pat. No. 6414104), polyarylene having an aromatic heterocyclic group in the side chain 277568), polyfluorene having a quinoline group in the side chain (J. of Polymer Science, Part A, Polymer Chemistry, Vol. 43, 859-869 (2005)), polyfluorene having a triarylamine group in the side chain (Advanced Materials, 14, No. 11, 809-811 (2002)) etc. have been proposed. Invention Disclosure ''
- the present invention is particularly useful as a light-emitting material, and aims to provide a novel polymer compound having a practical level of heat resistance and fluorescence intensity, and a polymer light-emitting device using the polymer compound.
- the present inventors came to make this invention as a result of earnest examination. That is, the present invention provides a polymer compound containing a repeating unit represented by the following formula (1).
- Ar is an arylene group having a group represented by the following formula (2), a divalent heterocyclic group having a group represented by the following formula (2), or a group represented by the following formula (2)
- Ar 2 represents an arylene group, a divalent heterocyclic group or a divalent aromatic amine group
- Ar 5 represents a direct bond, an arylene group, a divalent heterocyclic group or a divalent group.
- a r 3 and A each independently represent an aryl group, a monovalent
- the polymer compound of the present invention is a polymer compound containing a repeating unit represented by the formula (1).
- the polymer compound of the present invention may contain only one type or two or more types of repeating and returning units represented by the formula (1).
- Ar is an arylene group having a group represented by the formula (2)
- Ar other than the group represented by the formula (2), is an alkyl group, an alkoxy group, an alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkyl group.
- Group, arylenylalkenyl group, arylyl It may have a substituent such as a alkynyl group, an arylamine group, a monovalent heterocyclic group or a cyano group.
- a r has a plurality of substituents, they may be the same or different from each other. Details of these substituents are the same as those specifically described and exemplified as R in the examples of the arylene group described below (the following formulas 1 to 38, A to I, and K).
- the arylene group means the remaining atomic group obtained by removing two hydrogen atoms from an aromatic hydrocarbon.
- the arylene group usually has about 6 to 60 carbon atoms. Carbon number does not include the carbon number of the substituent.
- the aromatic hydrocarbon includes those having a condensed ring and those in which two or more independent benzene rings or condensed rings are bonded directly or via a group such as a vinylene group.
- the arylene group includes a phenylene group (for example, the following formulas 1 to 3), a naphthalene diyl group (the following formulas 4 to 13) ', an anthracenylene group (the following formulas 14 to 19), a p-phenylene group (the following Formulas 20 to 25), Triphenylene groups (Formulas 26 to 28), Condensed ring compound groups (Formulas 29 to 3 8), Stilbene dizyl groups (Formulas A to D) And a distilbene-diyl group (formula E, F), a benzofluorene monozyl group (formula G, H, I, K) and the like.
- a phenylene group for example, the following formulas 1 to 3
- a naphthalene diyl group the following formulas 4 to 13
- an anthracenylene group the following formulas 14 to 19
- a p-phenylene group the following Formulas 20 to 25
- phenylene, naphthalene diyl, biphenylene di, fluorene-zyl (the following formula 3 6 to 3 8), stilbene dizyl group (from formula ⁇ to D), distilbene diyl group ( The following formulas E, F) and benzofluorene-diyl groups are preferred.
- each R is independently a group represented by the above formula (2), a hydrogen atom, an alkyl group, an alkoxy group, An alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, a 7 reel alkyl group, an aryl alkyl group, an aryl alkyl group, an aryl alkyl group, an aryl amino group, a monovalent heterocyclic group or a cyan group. Show. In the examples of these arylene groups, one structural formula has a plurality of R, but they may be the same or different. However, at least one R is a group represented by the formula (2).
- the alkyl group may be linear, branched or cyclic, and usually has about 1 to 20 carbon atoms. Specific examples of the alkyl group include methyl group, ethyl group, propyl group, i-propyl pill group, butyl group, i-butyl group, t-butyl group, pentyl group, hexyl group, cyclohexyl group, heptyl.
- octyl group 2-ethylhexyl group, nonyl group, decyl group, 3,7-dimethyloctyl group, lauryl group, etc., pentyl group, hexyl group, octyl group, 2-ethylhexyl group, etc.
- a decyl group or 3,7-dimethyloctyl group is preferred.
- the alkoxy group may be linear, branched or cyclic, and usually has about 1 to 20 carbon atoms. Specific examples of the alkoxy group include methoxy group, ethoxy group, propyloxy group, ⁇ -propyloxy group, butoxy group, i-butoxy group, t-butoxy group, benzyloxy group, hexyloxy group, cyclohexyloxy group, heptyloxy group.
- the alkylthio group may be linear, branched or cyclic, and usually has about 1 to 20 carbon atoms.
- Specific examples of the alkylthio group include methylthio group, ethylthio group, propylthio group, i-propylthio group, butylthio group, i-butylthio group, t-butylthio group, pentylthio group, hexylthio group, cyclohexylthio group, Ptylthio group, o Examples include octylthio, 2-ethylhexylthio, nonylthio, decylthio, 3,7-dimethyloctylthio, laurylthio, pentylthio, hexylthio, octylthio, 2-ethylhexylthio.
- the alkylsilyl group may be linear, branched or cyclic, and usually has about 1 to 60 carbon atoms. Specific examples of the alkylsilyl group include a methylsilyl group, an ethylsilyl group, a propylsilyl group, an i-propylylsilyl group, a butylsilyl group, an i-butylsilyl group, a t-butylsilyl group, a pentylsilyl group, a hexylsilyl group, and a cyclohexylsilyl group.
- Examples include silyl group, nonyldimethylsilyl group, decyldimethylsilyl group, 3,7-dimethyloctyl-dimethyls
- the alkylamino group may be linear, branched or cyclic, and may be a monoalkylamino group or a dialkylamino group, and usually has about 1 to 40 carbon atoms.
- Specific examples of the alkylamino group include a methylamino group, a dimethylamino group, an ethylamino group, a dimethylamino group, a propylamino group, an i-propylamino group, a butylamino group, an i-butylmethylamino group, a tert-butylamino group, a pentylamino group, Xylamino group, cyclohexylamino group, heptylamino group, octylamino group, 2-ethylhexylamino group, nonylamino group, decylamino group, 3,7-dimethyloctylamino group, lauryla And
- the aryl group usually has about 6 to 60 carbon atoms.
- Ariru group, phenylpropyl group, ⁇ ⁇ ⁇ 12 alkoxy phenylalanine group ( " ⁇ , ⁇ 12 alkoxy” means that carbon atoms in the alkoxy moiety is 1 to 1 2, and so forth ), ⁇ ⁇ ⁇ 12 alkyl phenyl group (" ⁇ ⁇ 0, 2 alkyl” indicates that the alkyl moiety has 1 to 12 carbon atoms, and so on.), 1 naphthyl group, and 2-naphthyl group, C, -C 12 alkoxy phenylalanine group, C, and -C 12 alkylphenyl group are preferable.
- the aryloxy group usually has about 6 to 60 carbon atoms.
- Specific examples of aryloxy groups include phenoxy groups, alkoxyphenoxy groups, alkylphenoxy groups, 1-naphthyloxy groups, 2-naphthyloxy groups, and the like.
- the group C, ⁇ C, 2 alkylphenoxy is preferred.
- the arylalkyl group usually has about 7 to 60 carbon atoms.
- arylalkyl groups include phenyl C, ⁇ C, 2 alkyl groups, C, ⁇ C 12 alkoxyphenyls-C, ⁇ C, 2 alkyl groups, ⁇ alkylphenyl- ⁇ alkyl radicals, 1 naphthyl — ⁇ ⁇ . 12 alkyl group, .2- naphthyl - like ⁇ Ji ⁇ alkyl group and the like, C, ⁇ C, '2 Arukokishifue two Roux C, -C, 2 alkyl group, C, -C, 2 Arukirufue two Lou C, c 12 alkyl groups are preferred.
- aryl group is usually about 7 to 60 carbon atoms.
- arylalkoxy groups include phenyl— ⁇ 0 12 alkoxy groups, C! C alkoxyphenyl — C, ⁇ C 12 alkoxy groups, ⁇ ⁇ dialkylphenyl— ⁇ ⁇ di ⁇ alkoxy groups, 1 —naphthyl—C , -C 12 alkoxy group, 2-Nafuchiru ⁇ ⁇ ⁇ 12 an alkoxy group ani Gerare, ⁇ ⁇ Ji ⁇ ⁇ Turkey hydroxyphenyl - ⁇ ⁇ Ji ⁇ Arukokishi group, ⁇ ⁇ Ji alkyl phenyl - 1-2 alkoxy group is preferred .
- the arylalkenyl group usually has about 8 to 60 carbon atoms.
- Specific examples of aryl alkenyl groups include phenyl-C 2 -C 12 alkenyl groups (“C 2 -C 12 7 alkenyl” This indicates that the alkenyl moiety has 2 to 12 carbon atoms, and so on.
- the arylene alkynyl group usually has about 8 to 60 carbon atoms.
- Specific examples of aryl alkynyl groups include phenyl C 2 -C, 2 alkynyl groups (“C 2 -C 12 alkynyl” indicates that the alkynyl moiety has 2 to 12 carbon atoms, and so on.
- the arylamine group usually has about 6 to 60 carbon atoms.
- the monovalent heterocyclic group means the remaining atomic group obtained by removing r hydrogen atoms from the heterocyclic compound.
- the monovalent heterocyclic group usually has about 4 to 60 carbon atoms (the carbon number does not include the carbon number of the substituent).
- Heterocyclic compounds are organic compounds having a cyclic structure that contain not only carbon atoms but also heteroatoms such as oxygen, sulfur, nitrogen, phosphorus, and boron in the ring. Say.
- the monovalent heterocyclic group Choi two Le group, C, ⁇ C 12 alkyl chain group, a pyrrolyl group, Furinore group, a pyridyl group, C, -C 12 alkyl and pyridyl group and the like, thienyl group, C, -C 12 alkyl chain group, Pi lysyl group, 1-2 alkyl pyridyl group are preferable.
- the alkyl chain is a heteroatom or It may be interrupted by a group containing a mouth atom.
- this hetero atom include an oxygen atom, a sulfur atom, and a nitrogen atom.
- the group containing a hetero atom or a hetero atom include the following.
- R ′ is independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 60 carbon atoms, or 4 carbon atoms. It is a monovalent heterocyclic group of ⁇ 60.
- the alkyl group, aryl group, and monovalent heterocyclic group represented by R ′ are represented by R in the examples of the arylene group (the above formulas 1 to 38, A to I, and K). This is the same as described and exemplified as the substituent.
- the repeating unit shape has little symmetry, and one or more of R include a cyclic or branched alkyl chain. It is preferable. A plurality of R may be connected to form a ring.
- the substituent containing an alkyl chain is linear, branched or cyclic, or a combination thereof. Examples of the non-straight chain include an isoamyl group, a 2-ethylhexyl group, a 3,7-dimethyloctyl group, a cyclohexyl group, and a 4-C 1 -C 1 2 alkylcyclohexyl group.
- the divalent heterocyclic group means the remaining atomic group obtained by removing two hydrogen atoms from the heterocyclic compound.
- the divalent heterocyclic group usually has about 4 to 60 carbon atoms (the carbon number does not include the carbon number of the substituent).
- Heterocyclic compounds are organic compounds with a cyclic structure that contain not only carbon atoms but also heteroatoms such as oxygen, sulfur, nitrogen, phosphorus, and boron in the ring.
- a divalent aromatic heterocyclic group that is, a divalent heterocyclic group having an aromatic property
- Divalent heterocyclic group Specific examples of these include the following.
- Fluorene structure containing silicon, nitrogen, oxygen, sulfur, selenium, etc. as a heteroatom that is, one of the carbon atoms constituting the 5-membered ring in the fluorene ring is silicon, nitrogen, oxygen, sulfur, selenium Or a group substituted with a group containing these atoms, etc.
- the divalent aromatic amine group means the remaining atomic group obtained by removing two hydrogen atoms from the aromatic amine.
- the divalent aromatic amine group usually has about 4 to 60 carbon atoms (the carbon number does not include the carbon number of the substituent).
- Examples of the divalent aromatic amine group include a group represented by the following general formula (3). However, the formula (3) has at least one substituent represented by the formula (2).
- a r 6 and A r 8 are each independently an arylene group which may have a substituent, a group represented by the following general formula (4), or a general formula (5) that is a group
- Ar 7 is optionally Ji have a substituent Ariru group, a group represented by the group or under following general formula represented by the following general formula (6) (7)
- 6 A ring may be formed between 8 1 ′′ 7 , Ar 6 and Ar 8 , or A r 7 and A r 8 .
- Y 8 and 8 ⁇ each independently represents an arylene group which may have a substituent
- R 9 and R 1 each independently represent a hydrogen atom, an alkyl ⁇
- Aryl Hua represents a monovalent heterocyclic group or a cyano group.
- Ar n and Ar 12 each independently represent an arylene group which may have a substituent
- Ar 13 represents an aryl group which may have a substituent
- Ar,, and Ar 12 or A r, 2 and A r, 3 may form a ring.
- Ar l4 is substituted indicates which may Ariren group, 1 "17 Oyobihachi 1 8 each independently a good Ariru group which may have a substituent 1: 14 and "between 17, 1" ⁇ 1 14 and eight 1 "1 8 or between may form a ring between the a r 17 and a r 18,) -.
- Ar 15 represents an arylene group which may have a substituent
- Ar l6 represents an aryl group which may have a substituent
- 1 11 and 1 12 Each independently represents a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyano group.
- the arylene group which may have a substituent represented by Ar 6 , Ar 8 to Ar 12 , A r, 4 and A r, 5 is represented by the formula (1 ), It is the same as the arylene group described and exemplified as (however, it does not have to have a substituent represented by the formula (2)). From the viewpoint of ease of monomer synthesis, a phenylene group is preferred.
- an aryl group which may have a substituent represented by Ar 7 , A r, 3 and A r, 6 to A r, 8 is the above aryl group.
- a len group it is the same as the aryl group in what is explained and exemplified as R (in the above formulas 1 38 and A to I)
- the alkyl group, aryl group and monovalent heterocyclic group represented by R 9 to R 12 are the same as those in the above-mentioned arylene group (the above formulas 1 to 38, A to I The same as the alkyl group, aryl group, and monovalent heterocyclic group described and exemplified as R).
- Ar 6 to Ar 18 are an alkyl group, an alkoxy group, an alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkyl group. May have a substituent such as a group, an aryl alkenyl group, an aryl alkynyl group, an aryl amino group, a monovalent heterocyclic group, and a cyan group.
- Specific examples of the divalent aromatic amine group include the following groups.
- the divalent group represented by the following formula (8) and the divalent group represented by the following formula (9) are preferable, and the divalent group represented by the formula (8) is more preferable. .
- R 13 represents a group represented by the above formula (2), a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, an arylalkyl group, an alkyl group; Represents a reel alkoxy group, an aryl alkenyl group, an aryl alkyl group, an aryl amino group, a monovalent heterocyclic group or a cyan group, or a plurality of R 13 may be bonded to form an aromatic ring or a non-aromatic ring.
- a plurality of R 13 may be the same or different, provided that the formula (8) has at least one group represented by the formula (2).
- R 13 is the same as the above. However, the formula (9) has at least one group represented by the formula (2).
- a plurality of R 13 bonded to form an aromatic ring for example, a group represented by the above formulas G, H, I, and K
- an aromatic ring for example, a group represented by the above formulas G, H, I, and K
- X represents one CR 'CR 2 — or — C ⁇ C one — CR 1
- N 0 or 1
- 0 is preferable from the viewpoint of photooxidation stability.
- R 1 and R 2 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyan group.
- These alkyl groups, aryl groups and monovalent heterocyclic groups are the alkyl groups in those described and exemplified as R (in the above formulas 1 to 38, A to I) in the above-mentioned arylene group section, Same as aryl group and monovalent heterocyclic group.
- Ar 2 is the same group as described and exemplified as Ar, but Ar 2 may not have the substituent represented by the formula (2). From the viewpoint of ease of monomer synthesis, Ar 2 is preferably a phenylene group.
- Ar 5 represents a direct bond, an arylene group, a divalent heterocyclic group, or a divalent aromatic amine group. These arylene group, divalent heterocyclic ring group and divalent aromatic amine group are the same groups as those described and exemplified as Ar, but Ar 5 is represented by the formula (2). The substituents shown may not be present.
- R 3 is a direct bond.
- Examples of the alkylene group represented by R 5 include a methylene group, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group, a heptylene group, an octylene group, a 2-ethylhexylene group, a nonylene group, and a decylene group. 3, 7-dimethyloctylene group, laurylene group, etc., pentylene group, hexylene group, heptylene group, octylene group, 2-ethylhexylene group, nonylene group, decylene group, '3, 7- A dimethyloctylene group is preferred.
- Alkenylene groups include, for example, 'ethynylene group, propynylene group, pentylene group, pentylene group, hexynylene group, heptynylene group, octynylene group, 2-ethylhexynylene group, 3, 7-dimethyloctylene Examples include diene groups.
- R 7 and R 8 each independently represents a hydrogen atom, an alkyl group ′, an aryl group, a monovalent heterocyclic group or a cyano group.
- the alkyl group, aryl group and monovalent heterocyclic group represented by R 6 , R 7 and R 8 are the same as those in the above-mentioned arylene group (in the above formulas 1 to 38, A to I). The same as the alkyl group, aryl group and monovalent heterocyclic group described and exemplified as above.
- Ar 3 and Ar 4 each independently represent an aryl group, a monovalent heterocyclic group or a monovalent aromatic amine group.
- Ar 4 Ar 4 has a substituent. Also good. Examples of the substituent that Ar 3 and Ar 4 may have include, for example, an alkyl group, an alkoxy group, an alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, an arylalkyl group, and an arylalkyl group. Group, aryl alkenyl group, 'aryl alkynyl group, aryla, mino group, monovalent heterocyclic group and the like.
- the aryl group represented by A r 3 and A r 4 usually has about 6 to 60 carbon atoms.
- this aryl group include phenyl group, naphthyl group, anthracenyl group, biphenyl group, triphenyl group, pyrenyl group, fluorenyl group, benzofluorenyl group, stilbenyl group, distilbene group. And the like.
- a phenyl group, a naphthyl group, a biphenyl group, a fluorenyl group, a benzofluorenyl group, a stilbene group, and a distilbyl group are preferable because of the ease of monomer synthesis. Is more preferably a phenyl group. '
- the monovalent heterocyclic group represented by A r 3 and A r 4 means the remaining atomic group obtained by removing one hydrogen atom from a heterocyclic compound.
- This monovalent heterocyclic group usually has about 2 to 60 carbon atoms (note that the carbon number does not include the carbon number of the substituent).
- Heterocyclic compounds are organic compounds with a cyclic structure, and the elements that make up the ring are not only carbon atoms, but also heteroatoms such as oxygen, sulfur, nitrogen, phosphorus, and boron in the ring. It means to include. Specific examples of the monovalent heterocyclic group include the following.
- a 5-membered heterocyclic group containing silicon, nitrogen, oxygen, sulfur, selenium, etc. as a hetero atom (a group represented by the above formulas 94 to 98, wherein one of the two bonds is R some stuff) .
- a 5-membered condensed polycyclic group containing silicon, nitrogen, oxygen, sulfur, selenium, etc. as a heteroatom (a group represented by the above formulas 99-108 and having two bonds) One is R).
- the monovalent heterocyclic group represented by A r 3 and A r 4 includes, for example, a group derived from a triplet light-emitting complex, and a monovalent complex group (for example, shown below) Monovalent metal complex groups, etc.).
- the “monovalent aromatic amin group” represented by A r 3 and A r 4 means the remaining atomic group obtained by removing one hydrogen atom from the aromatic ammine.
- This monovalent aromatic amine group usually has 4 carbon atoms. About 60 (Note that the carbon number does not include the carbon number of the substituent.)
- Specific examples of the monovalent aromatic amine group include groups represented by the following formulas 123 to 127.
- R is in the above-mentioned arylene group (as R in the above formulas 1 to 38, A to I, and K). And it is the same as illustrated, but it does not have to have the substituent represented by the formula (2).
- Y represents the following formula:
- repeating unit represented by the formula (1) include the following.
- the total number of repeating units represented by the formula (1) is usually 1 mol% or more and 100 mol% or less of all repeating units of the polymer compound. From the viewpoint of the fluorescence intensity of the polymer compound, it is preferably 2 mol% or more and 50 mol% or less, more preferably 5 mol% or more and 50 mol% or less of all repeating units of the polymer compound. .
- the polymer compound of the present invention further contains a repeating unit represented by the following formula (10), which can improve the solubility and film-forming property of the polymer compound. It is preferable from the viewpoint.
- Ar 19 represents an arylene group, a divalent heterocyclic group, a divalent aromatic amine group or a divalent aromatic phosphine group
- R 14 and R 1 ' 5 each independently represents a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyano group) or — C ⁇ C and p Represents 0 or 1.
- the arylene group represented by Ar 19 , the divalent heterocyclic group, and the divalent aromatic amine group are the same as those described and exemplified as Ar,
- the substituents are: alkyl group, alkoxy group, alkylthio group, alkylsilyl group, alkylamino group, aryl group, aryloxy group, aryl alkyl group, aryl alkoxy group, aryl aryl alkenyl group, aryl An alkynyl group, an arylamino group, a monovalent heterocyclic group or a cyano group;
- the substituent is not represented by the formula (2) and does not contain a phosphorus atom.
- the divalent aromatic phosphine group represented by Ar 19 means the remaining atomic group obtained by removing two hydrogen atoms from the aromatic phosphine.
- the divalent aromatic phosphine group usually has about 4 to 60 carbon atoms (note that the carbon number does not include the carbon number of the substituent).
- Examples of the divalent aromatic phosphine group include groups represented by the following formulas 200 to 203.
- R ** is an arylene group represented by Ar 19 , a divalent heterocyclic group, a divalent aromatic It is the same as the substituent of the group amine group.
- a group represented by the above formula 200 is preferable from the viewpoint of ease of monomer synthesis.
- Ar 19 is an alkyl group, an alkoxy group, an alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, an aryl alkyl group, an aryl alkyl group, an aryl alkenyl group, an aryl alkynyl group, an aryl amino group, 1 It may have a substituent of a valent heterocyclic group or a cyano group. When Ar 19 has a plurality of substituents, they may be the same or different. For details on these substituents, see In the examples of the arylene group described above (the above formulas 1 to 38, A to K), among those specifically explained and exemplified as R, the number is the same as those other than the group represented by the formula (2).
- Ar ls is preferably an arylene group or a divalent heterocyclic group from the viewpoint of the fluorescence intensity of the polymer compound.
- heteroatoms above formulas 79-93
- a divalent group represented by any one of the following formulas (2 a) to (2 d) is more preferable from the viewpoint of heat resistance and fluorescence intensity of the polymer compound.
- R a is Represents a substituent
- m independently represents an integer of 0 to 5
- n independently represents an integer of 0 to 3.
- the atom represented by X and the divalent group include, for example, 1 C (R 18 ) (R 19 )-, 1 C (R 20 ) (R 2 Lee C (R 22 ) (R 23 )-, -0-, 1 S-, 1 S 0 2 , — S e—, — Te—, —N (R 24 ) _, 1 S i (R 25 ) ( R 26) - and the like, ease of synthesis of the polymerized compound, from the viewpoint of the fluorescence intensity, - C (R i8) ( R 19) -, one C (R 2 ») (R 21) - C (R 22 ) (R 23 ) —, 101, 1 S—, 1 N (R 24 ) — are preferred, where R 18 , R 19 , R 2D , R 21 , 122 and 123 are Independently, a hydrogen atom, an alkyl group, an alkoxy group, an alky
- R 24 , R 25 and R 26 each independently represents a hydrogen atom, an alkyl group, an aryl group, an aryl alkyl group or a monovalent heterocyclic group, wherein R 24 ,
- the alkyl group, aryl group, aryl alkyl group, and monovalent heterocyclic group represented by R 25 and R 26 are the same as those in the above-mentioned arylene group (the above formulas 1 to 38, 8 to 1, ' 11) is the same as described and exemplified.
- repeating units represented by the formulas (2a) to (2d) include the following groups.
- R is the same as above. However, R is not a group represented by the above formula (2).
- R is not a group represented by the above formula (2).
- R is the same as the above. However, R is not a group represented by the above formula (2).
- one structural formula has a plurality of Rs. But they may be the same or different.
- the group represented by R is the same as explained and exemplified in the above-mentioned arylene group (as R in the above formulas 1 to 38, A to I and K). However, the substituent represented by the formula (2) is not included.
- R 15 each independently represents a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyan group.
- P represents 0 or 1. From the viewpoint of photooxidation stability of the polymer compound, p is preferably 0.
- R 14 and R 15 are the same as those described and exemplified for R 1 and R 2 above.
- the polymer compound of the present invention contains a repeating unit other than the repeating unit represented by the formula (1) and the repeating unit represented by the formula (10) as long as the fluorescence property and the charge transport property are not impaired. May be.
- the polymer compound is substantially composed of the repeating unit represented by the formula (1) and the repeating unit represented by the formula (10).
- “substantially” means that in the polymer compound of the present invention, the total of the repeating unit represented by the formula (1) and the repeating unit represented by the formula (10) with respect to all repeating units is Five It means 0 to 100 mol%, preferably 80 to 100 'mol%, more preferably 90 to 100 mol%. .
- R represents the above-mentioned arylene group (the above formulas 1 to 38, A to I and K) Explained and exemplified as R (provided that R is exemplified as the repeating unit represented by the formula (10) does not include the substituent represented by the formula (2) Same as q ).
- the repeating unit represented by the formula (1) and the formula (1 0) and the repeating unit represented by the formula (1 0) are not less than 50 mol% of the total repeating units of the polymer compound. From the viewpoint of heat resistance, it is more preferable that the repeating unit represented by the formula (1) is 2 mol% or more and 90 mol% or less with respect to the total of the above.
- the polymer compound of the present invention preferably has a polystyrene-equivalent number average molecular weight of IX 10 3 to 1 X 10 8 , and more preferably 2 X 10 3 to 1 X 10 7 .
- the polymer compound of the present invention preferably has fluorescence and Z or phosphorescence in the solid state.
- the polymer compound of the present invention when a group (usually called a polymerization active group) involved in polymerization remains in a group located at the end of the molecular chain (ie, terminal group), the polymer compound is When used in a light-emitting element, the light emission characteristics and life may be reduced, so that it may be protected with a stable group that does not participate in polymerization.
- the terminal group is preferably one having a conjugated bond continuous with the substantial conjugated structure of the molecular chain main chain. Further, for example, a structure in which an aryl group or a heterocyclic group is bonded via a vinylene group may be used.
- substituents described in Chemical formula 10 of JP-A-9-4 '5 4 78 are exemplified. '
- the molecular chain main chain is usually substantially conjugated.
- substantially conjugated means usually from 50 to 100 mol%, preferably from 80 to 100 mol% based on all repeating units constituting the molecular chain main chain. It means that 100 mol%, more preferably 90 to 100 mol% of repeating units constitute a conjugated system of the molecular chain main chain.
- the repeating unit may be linked with a vinylene group or a non-conjugated part, or the repeating unit may contain a vinylene group or a non-conjugated part. Examples of the bond structure including the non-conjugated portion include those shown below, combinations of the following and vinylene groups, and combinations of two or more of the following. o S
- S RI RC RR * ————— represents the same group as R ′ in the examples of the bond structure containing these non-conjugated moieties.
- Ar is a carbon-carbon hydrogen group having 6 to 60 carbon atoms (specifically, for example, a group in which hydrogen atoms such as benzene, biphenyl, terphenyl, naphthalene, and anthracene are bonded). Show. '
- the polymer compound of the present invention may be any of a random copolymer, a block copolymer, or a graft copolymer, or a polymer having an intermediate structure thereof, for example, having a blocking property. Random copolymers may also be used. From the viewpoint of obtaining a polymer compound having high fluorescence intensity, a random copolymer, block copolymer or graft copolymer having a block property is preferable to a complete random copolymer.
- the polymer compound of the present invention includes a dendrimer or the like when the main chain is branched and there are three or more terminal portions.
- the polymer compound of the present invention can be partially or wholly dissolved or dispersed in a solvent as necessary.
- suitable solvents for the polymer compound of the present invention include chloroform, methylene chloride, dichloroethane, tetrahydrofuran, toluene, xylene, mesitylene, tetralin, decalin, and n-butylbenzene.
- chloroform methylene chloride
- dichloroethane tetrahydrofuran
- toluene toluene
- xylene mesitylene
- tetralin tetralin
- decalin decalin
- n-butylbenzene n-butylbenzene
- Examples of the production method in the case where the polymer compound of the present invention has a vinylene group in the main chain include the method described in JP-A-5-202355. That is, polymerization by a Wittig reaction of a compound having an aldehyde group and a compound having a phosphonium base, or a compound having an aldehyde group and a phosphonium base, a compound having a vinyl group and a compound having a halogen atom, or vinyl Of a compound having an alkyl group and a halogen group by Heck reaction, a compound having an aldehyde group and a compound having an alkyl phosphonate group, or a compound having an aldehyde group and an alkyl phosphonate group.
- a compound having a plurality of reactive groups which becomes a monomer, is dissolved in an organic solvent as necessary, and the reaction is carried out, for example, using an alkali or an appropriate catalyst at a temperature not lower than the melting point of the organic solvent and not higher than the boiling point.
- an alkali or an appropriate catalyst at a temperature not lower than the melting point of the organic solvent and not higher than the boiling point.
- the organic solvent used be sufficiently deoxygenated to allow the reaction to proceed in an inert atmosphere.
- a dehydration treatment (however, this is not the case in the case of a two-phase reaction with water such as the Suzuki coupling reaction).
- an alkali and an appropriate catalyst are added as appropriate. These may be selected according to the reaction used. These alkalis and catalysts are preferably those that are sufficiently soluble in the solvent used in the reaction. As a method of mixing alkali and catalyst, slowly add the reaction solution while stirring the reaction solution under an inert atmosphere such as argon or nitrogen, and add the catalyst solution.
- reaction conditions are as follows.
- the alkali include, but are not limited to, metal alcohols such as potassium tert-butoxide, sodium t-butoxide, sodium methylate, lithium methylate, hydride reagents such as sodium hydride, sodium amide, etc. Amides such as can be used.
- N, N-dimethylformamide, tetrahydrofuran, dioxane, benzene or the like is used as the solvent.
- the reaction can be carried out usually at room temperature to about 150 ° C.
- the reaction time is, for example, 5 minutes to 40 hours, but it is sufficient that the polymerization proceeds sufficiently, and it is not necessary to leave for a long time after the reaction is completed. 4 hours.
- the concentration at the time of reaction is poor if the reaction is too dilute, and if it is too concentrated, it becomes difficult to control the reaction, so it may be appropriately selected within the range of about 0.01% by weight to the maximum concentration to be dissolved. 0.1 wt% to 20 wt%.
- the monomer is reacted in the presence of a base such as triethylamine using a palladium catalyst.
- a base such as triethylamine
- a solvent having a relatively high boiling point such as N, N-dimethylformamide or N-methylpyrrolidone is used, the reaction temperature is about 80 to 160 ° C., and the reaction time is about 1 to 100 hours.
- the Suzuki coupling reaction for example, palladium [tetrakis (triphenylphosphine)], palladium acetates, etc.
- inorganic bases such as potassium carbonate, sodium carbonate, barium hydroxide
- An organic base such as triethylamine and an inorganic salt such as cesium fluoride are added in an amount of not less than an equivalent amount, preferably 1 to 10 equivalents, and reacted.
- the inorganic salt may be reacted as an aqueous solution in a two-phase system.
- the solvent include N, N-dimethylformamide, toluene, dimethoxyethane, tetrahydrofuran and the like.
- a temperature of about 50 to 160 is preferably selected. The temperature may be raised to near the boiling point of the solvent and refluxed.
- the reaction time is about 1 hour to 200 hours.
- a halide solution and metal Mg are reacted in an ether solvent such as tetrahydrofuran, jetyl ether, dimethoxetane, etc. to form a Grignard reagent solution, and a separately prepared monomer solution.
- a nickel or palladium catalyst is added while paying attention to excess reaction, and then the mixture is heated to reflux and reacted.
- the Grignard reagent is used in an amount equal to or greater than the monomer, preferably 1 to 1.5 equivalents, more preferably 1 to 1.2 equivalents.
- the reaction can be carried out according to a known method.
- An example is a method of reacting a halide with a zerovalent nickel complex in a hydrocarbon-hydrocarbon solvent.
- the zero-valent nickel complex include bis (1,5-cyclocyclogen) nickel (0), (ethylene) bis (triphenylphosphine) nickel (0), tetrakis (triphenylphosphine) nickel, etc.
- Bis (1,5-cyclooctagen) nickel (0) is preferred.
- a neutral ligand is a ligand that does not have any anion or force thione.
- Specific examples of compounds that can serve as neutral ligands include nitrogen-containing compounds such as 2,2'-pipyridyl, 1,10-phenantorporin, methylenebisoxazoline, and N, N'-tetramethylethylenediamine.
- a ligand compound is preferable, and 2,2′-pipyridyl is particularly preferable in terms of high reactivity and high yield.
- 2,2′-pipyridyl is particularly preferable in terms of high reactivity and high yield.
- bis (1,5-cyclohexane) nickel A system in which 2,2'-pipyridyl is added as a compound that becomes a neutral ligand to a system containing (0) is preferred.
- the amount of zero-valent nickel complex used is not particularly limited as long as it does not inhibit the polymerization reaction. However, if the amount is too small, the polymerization reaction time will be long.On the other hand, if the amount is too large, post-treatment will be difficult, so 0.1 mole or more, preferably 1 mole or more, per mole of monomer. It is. If the amount used is too small, the molecular weight tends to be small. The upper limit is not limited, but the amount after treatment tends to be difficult if the amount is too large, so 5.0 mol or less is preferable.
- the amount used is usually about 0.5 to 10 moles per mole of zero-valent nickel complex, but from the viewpoint of cost performance (high yield and cheap input amount) Mole to 1.1 mol is preferred.
- the reaction can be carried out according to a known method.
- a method of polymerizing with a Ni (0) catalyst is particularly preferred from the viewpoint of availability of raw materials and ease of polymerization reaction operation.
- the polymer compound of the present invention is useful as a light emitting material. That is, the luminescent material of the present invention comprises the polymer compound. If necessary, the light emitting material may contain components other than the high molecular compound (for example, a light emitting material other than the polymer compound, a hole transport material, an electron transport material, etc.).
- the polymer compound of the present invention is useful as, for example, an organic semiconductor material or an optical material. Furthermore, it can also be used as a conductive material by doping.
- the polymer compound of the present invention is used as a light-emitting material (for example, a light-emitting material of a polymer light-emitting device), since the purity affects the light-emitting characteristics, the monomer before polymerization is distilled, sublimated, purified, and recrystallized. Polymerization is preferably performed after purification by a method such as refining, and after synthesis, it is preferable to carry out a purification treatment such as reprecipitation purification and fractionation by chromatography.
- the liquid composition of the present invention contains the polymer compound and a solvent.
- This liquid composition may contain the polymer compound of the present invention.
- Specific examples thereof include poly (phenol). Diene) and derivatives thereof, poly (fluorene) and derivatives thereof, poly (benzofluorene) and derivatives thereof, poly (dibenzofuran) and derivatives thereof, poly (dibenzothiophene) and derivatives thereof, poly (carbazol) and derivatives thereof Derivatives, poly (thiophene) and its derivatives, poly (phenylene vinylene) and its derivatives, poly (fluorene vinylene) and its derivatives, poly (benzofluorene pinylene) and its derivatives, poly (dibenzofuranvinylene) ) And derivatives thereof.
- the liquid composition of the present invention is useful for the production of light emitting devices such as polymer light emitting devices and organic transistors.
- the “liquid composition” means a liquid at the time of device fabrication, and typically means a liquid at normal pressure (ie, 1 atm) and 25.
- the liquid composition is generally called ink, ink composition, solution or the like.
- the liquid composition of the present invention includes a low molecular light emitting material, a hole transport material, an electron transport material, a stabilizer, an additive for adjusting viscosity and Z or surface tension, an antioxidant, and the like. May be included. These optional components may be used alone or in combination of two or more.
- Examples of the low molecular weight light emitting material that may be contained in the liquid composition of the present invention include naphthalene derivatives, anthracene, anthracene derivatives, perylene, perylene derivatives, polymethine dyes, xanthene dyes, coumarin dyes, cyanine dyes, , Metal complexes having a metal complex of 8-hydroxyquinoline as a ligand, metal complexes having an 8-hydroxyquinoline derivative as a ligand, other light-emitting metal complexes, aromatic amines, tetraphenyl-pentagen , Tetraphenylcyclopentene derivatives, tetraphenylcyclobutagen, tetraphenylcyclobutadiene derivatives, stilbene, gay-containing aromatics, oxazole, furoxan, thiazole, tetraarylmethane, thiadia zoone Le system, pyrazol system Meta cycloalkyl Juan systems
- Examples of the hole transport material that the liquid composition of the present invention may contain include polyvinyl carbonate. Rupazol and derivatives thereof, polysilane and derivatives thereof, polysiloxane derivatives having aromatic amines in the side chain or main chain, pyrazoline derivatives, arylamine derivatives, stilbene derivatives, triphenyldiamine derivatives, polyaniline and derivatives thereof, polythiophene And its derivatives, polypyrrole and its derivatives, poly (p-phenylenevinylene) and its derivatives, poly (2,5-Chenylenevinylene) and its derivatives, and the like.
- Examples of the electron transport material that may be contained in the liquid composition of the present invention include oxadiazole derivatives, anthraquinodimethane and its derivatives, benzoquinone and its derivatives, naphthoquinone and its derivatives, anthraquinone and its derivatives, tetra Cyananslaquinodimethane and its derivatives, fluorenone derivatives, diphenyldisyanoethylene and its derivatives, diphenoquinone derivatives, metal complexes of 8-hydroxyquinoline and its derivatives, polyquinoline and its derivatives, polyquinoxaline and its derivatives, polyfluorene And derivatives thereof.
- Examples of the stabilizer that may be contained in the liquid composition of the present invention include phenolic antioxidants and phosphorus antioxidants.
- Additives for adjusting the viscosity and Z or surface tension that may be contained in the liquid composition of the present invention include, for example, high molecular weight compounds (thickeners) for increasing the viscosity J3 ⁇ 4, poor solvents, viscosity A low molecular weight compound for decreasing the surface tension, a surfactant for decreasing the surface tension, and the like may be used in appropriate combination.
- the high molecular weight compound is not particularly limited as long as it does not inhibit light emission or charge transport, and is usually soluble in the solvent of the liquid composition.
- the high molecular weight compound for example, high molecular weight polystyrene, high molecular weight polymethyl methacrylate, or the like can be used.
- the above high molecular weight compound preferably has a polystyrene equivalent weight average molecular weight of 500,000 or more, more preferably 1,000,000 or more.
- a poor solvent can be used as a thickener.
- the antioxidant that may be contained in the liquid composition of the present invention is not limited as long as it does not inhibit light emission or charge transport. When the composition contains a solvent, it is usually soluble in the solvent. It is. Examples of the antioxidant include phenolic antioxidants and phosphorus antioxidants. By using an antioxidant, the storage stability of the polymer compound and the solvent can be improved.
- the ratio of the hole transport material in the liquid composition is usually 1 wt% to 80 wt%, preferably 5 wt% to 60% by weight.
- the proportion of the electron transport material in the liquid composition is usually 1% by weight to 80% by weight, preferably 5% by weight to 60%. % By weight.
- the film formation method using the liquid composition includes spin coating method, casting method, micro log lapia coating method, gravure coating method, bar coat method, roll coating method, wire bar coating method, dip coating method, spray coating method.
- Application methods such as screen printing, flexographic printing, offset printing, and inkjet printing can be used.
- the harm of the solvent in the liquid composition is usually 1% to 99.9% by weight, preferably 60% to 99.9% by weight, based on the total weight of the liquid composition. More preferably, it is 90% by weight to 9'9.8% by weight.
- the viscosity of the liquid composition varies depending on the printing method, it is preferably in the range of 0.5 to 500 mPa ⁇ s at 25.
- the viscosity is preferably in the range of 0.5 to 20 mPa ⁇ s at a viscosity of 25.
- the solvent contained in the liquid composition those capable of dissolving or dispersing components other than the solvent in the liquid composition are preferable.
- the solvent include chlorinated solvents such as chloroform, formaldehyde, 1,2-dichloroethane, 1,1,2-trichloroethane, benzene, o-dichlorobenzene, tetrahydrofuran, dioxane and the like.
- Ether solvents aromatic hydrocarbon solvents such as toluene, xylene, trimethylbenzene, mesitylene, cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n-oct Aliphatic hydrocarbon solvents such as tan, n-nonane, n-decane, ketone solvents such as acetone, methyl ede-ketone, cyclohexanone, ethyl acetate, butyl acetate, methyl benzoate, ethyl cellosolve acetate, etc.
- aromatic hydrocarbon solvents such as toluene, xylene, trimethylbenzene, mesitylene, cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n-oct Aliphatic
- Solvent types include aromatic hydrocarbon solvents and aliphatic hydrocarbon solvents from the viewpoints of solubility in organic solvents of components other than the solvent in the liquid composition, uniformity during film formation, and viscosity characteristics.
- Ester solvents, ketone solvents are preferred, toluene, xylene, ethylbenzene, diethylbenzene, trimethylbenzene, mesitylene, n-propylbenzene, i-propylbenzene, n-butylbenzene, i-butylbenzene, s-butyl Benzene, Anisol, Ethoxybenzene, 1-Methylnaphthalene, Cyclohexane, Cyclohexanone, Cyclohexylbenzene, Bicyclohexyl, Cyclohexenylcyclohexanone, n-Heptylcyclohexane, n-Hexylcyclohexane
- the type of solvent contained in the liquid composition is preferably 2 or more, more preferably 2 to 3, more preferably 2 from the viewpoints of film formability and device characteristics. Is more preferable.
- the liquid composition contains two types of solvents, one of them may be in a solid state at 25 ° C.
- one type of solvent has a boiling point of 180 ° C or higher, and the other type of solvent has a boiling point of 180.
- the solvent is preferably less than C, and one kind of solvent has a boiling point of 200 ° C. or more, and the other one kind of solvent has a boiling point of 18 (more preferably TC).
- the two solvents may be in the solid state at 25 ° C.
- at least one of the three solvents is a solvent having a boiling point of 180 ° C or higher, and at least one solvent is a solvent having a boiling point of less than 180 ° C.
- at least one of the three solvents is a solvent having a boiling point of 200 ° C. or more and 300 or less, and at least one of the solvents is more preferably a solvent having a boiling point of less than 180 ° C.
- the solvent with the highest boiling point is 40 to 90% by weight of the total solvent weight in the liquid composition It is preferably 50 to 90% by weight, more preferably 65 to 85% by weight.
- This thin film contains the polymer compound.
- the thin film include a light-emitting thin film, a conductive thin film, and an organic semiconductor thin film.
- the light-emitting thin film preferably has a quantum yield of light emission of 50% or more, more preferably 60% or more, and further preferably 70% or more, from the viewpoint of device brightness, light emission voltage, and the like. preferable.
- the conductive thin film preferably has a surface resistance of 1 ⁇ or less.
- the electrical conductivity can be increased by doping a Lewis acid, an ionic compound or the like in a thin purchase.
- the surface resistance is more preferably 100 ⁇ or less and even more preferably 10 ⁇ or less.
- the organic semiconductor thin film better one of electron mobility and hole mobility, the larger is, preferably 10 cm 2 V Roh seconds or more, more preferably 10 3 cm 2 or more ZVZ seconds, more preferably 10- 1 cm 2 / VZ seconds or more.
- an organic transistor can be fabricated using an organic semiconductor thin film. Specifically, by the organic semiconductor thin film is formed on S i substrate formed with an insulation film and a gate electrode such as S I_ ⁇ 2, a source electrode and a drain electrode in A u like, an organic transistor can do.
- This organic transistor includes the polymer compound of the present invention.
- the polymer compound of the present invention can be suitably used as a material for a polymer field effect transistor, particularly as an active layer.
- a source electrode and a drain electrode are usually provided in contact with an active layer made of a polymer, and a gate electrode is sandwiched between insulating layers in contact with the active layer. Should just be provided.
- 'Polymer field-effect transistors are usually formed on a supporting substrate.
- the material of the support substrate is not particularly limited as long as the characteristics as a field effect transistor are not hindered, but a flexible film substrate or a plastic substrate can also be used as a glass substrate.
- the polymer field effect transistor can be produced by a known method, for example, a method described in JP-A-5-110069.
- the film formation method from a solution obtained by dissolving an organic solvent-soluble polymer compound in a solvent includes spin coating method, casting method, micro gravure coating method, gravure coating method, per coating method, roll coating method, and wire-per coating method.
- the dates Coating methods such as pucoat method, spray coating method, screen printing method, flexographic printing method, offset printing method and ink jet printing method can be used.
- a sealed polymer field-effect transistor formed by sealing a polymer field-effect transistor after production is preferred.
- the polymer field effect transistor is shielded from the atmosphere, and the deterioration of the characteristics of the high molecular field effect transistor can be suppressed.
- Sealing methods include ultraviolet (UV) curable resin, thermosetting resin, inorganic Si ON x film, etc., glass plate and film laminated with UV curable resin, thermosetting resin, etc. Can be mentioned. After the polymer field-effect transistor is fabricated in order to effectively shut off from the atmosphere, the process until sealing is performed without exposure to the atmosphere (for example, in a dry nitrogen gas atmosphere, in the air, or in a vacuum). Is preferred.
- This organic solar cell includes the polymer compound of the present invention.
- a solid photoelectric conversion element that uses the photovoltaic effect as an organic photoelectric conversion element that is one embodiment of an organic solar battery will be described.
- the polymer compound of the present invention is used as a material for an organic photoelectric conversion element, particularly as an organic semiconductor layer of a Schottky barrier type element utilizing an interface between an organic semiconductor and a metal, and between an organic semiconductor and an inorganic semiconductor or between organic semiconductors. It can be suitably used as an organic semiconductor layer of a pn heterojunction element utilizing an interface.
- an organic photoelectric conversion device using a polymer / low-molecular composite system for example, It can be suitably used as an electron-donating conjugated polymer (dispersion support) of a bulk heterojunction organic photoelectric conversion element in which a fullerene derivative is dispersed as an electron acceptor.
- a p-type semiconductor layer is formed on an ohmic electrode, for example, ITO, and an n-type semiconductor layer is further stacked thereon. It suffices if an ohmic electrode is provided.
- the organic photoelectric conversion element is usually formed on a support substrate.
- Organic photoelectric conversion as support substrate The material is not particularly limited as long as the characteristics as a replacement element are not impaired, but a glass substrate, a flexible film substrate, or a plastic substrate can also be used.
- the organic photoelectric conversion device can be produced by a known method, for example, a method described in Synth. Met., 102, 982 (1999) or a method described in Science, 270, 1789 (1995). ⁇ Polymer light emitting device>
- the polymer light-emitting device of the present invention comprises an electrode composed of an anode and a cathode, and a light-emitting layer provided between the electrodes and having the polymer compound.
- the polymer light-emitting device of the present invention further includes a polymer light-emitting device in which an electron transport layer is provided between the cathode and the light-emitting layer; and a hole transport layer is provided between the anode and the light-emitting layer.
- Examples of the specific structure of the polymer light-emitting device of the present invention include the following a) to d). '
- the “light emitting layer” is a layer having a function of emitting light.
- the “hole transport layer” is a layer having a function of transporting holes.
- the “electron transport layer” is a layer having a function of transporting electrons.
- the electron transport layer and the hole transport layer are collectively referred to as a charge transport layer.
- the “method of film formation from a solution” applied to the formation of a light emitting layer refers to the polymerization of the present invention. This is a method of forming a film by applying a solution obtained by dissolving the compound in a solvent such as toluene, xylene, mesitylene, decalin, limonene or the like by the following application method.
- Examples of the method of film formation from a solution include spin coating, casting, micro gravure coating, gravure coating, bar coating, roll coating, wire bar coating, dip coating, and spray coating. Coating methods such as a printing method, a screen printing method, a flexographic printing method, an offset printing method, and an inkjet printing method can be used.
- a film is formed from a solution using the polymer compound of the present invention. In this case, it is only necessary to remove the solvent by drying after applying the obtained solution, and the same technique can be applied when a charge transport material or a light emitting material is mixed, which is very advantageous in production.
- the film thickness of the light-emitting layer varies depending on the material used, and may be adjusted so that the drive voltage and light emission efficiency are as expected.
- the thickness is 1 nm to 1 / im, preferably 2 nm. It is ⁇ 500 nm, more preferably 5 nm to 200 nm.
- a light emitting material other than the polymer compound may be mixed in the light emitting layer.
- a light emitting layer containing a light emitting material other than the polymer compound may be laminated with a light emitting layer containing the polymer compound.
- low molecular weight compounds include naphthalene derivatives, anthracene or derivatives thereof, perylene or derivatives thereof, polymethines, xanthenes, coumarins, cyanines and other pigments, metal complexes of 8-hydroxyquinoline or derivatives thereof, Aromatic amines, tetraphenylcyclopentene or derivatives thereof, tetraphenylbutadiene or derivatives thereof, and the like.
- known ones such as those described in JP-A-5 7-5 1 781 and JP-A-5 9-19 4 393 can be used.
- examples of the light emitting material include metal complexes that exhibit light emission from a triplet excited state (triplet light emission complex: for example, phosphorescence emission, and complexes in which fluorescence emission is observed in addition to this phosphorescence emission. Be turned. It is also possible to use materials that have been conventionally used as low-molecular EL light-emitting materials. These triplet light-emitting complexes are described in, for example, Nature, (1998), 395, 151, Appl. Phys. Lett. (1999), 75 (1), 4, Pro SPIE-Int. So Opt. Eng. (2001), '
- the hole transport layer contains a low-molecular or high-molecular hole transport material
- Polyvinylcarbazol or its derivative Polysilane or its derivative, Polysiloxane derivative having aromatic amine in the side chain or main chain, Pyrazoline derivative, Arylamine derivative, Stilbene derivative, Triphenyldiamine derivative, Polyaniline or its Derivatives, polythiophene or a derivative thereof, polypyrrole or a derivative thereof, poly (p-phenylene pinylene) or a derivative thereof, or poly (2,5-cenylene pinylene) or a derivative thereof are exemplified.
- the hole transport materials described in JP-A-37992 and JP-A-3-152184 are exemplified.
- the hole transport material used for the hole transport layer polyvinyl carbazole or a derivative thereof, polysilane or a derivative thereof, a polysiloxane derivative having an aromatic amine compound group in a side chain or a main chain
- Polymeric hole transport materials such as diphosphorus or derivatives thereof, polythiophene or derivatives thereof, poly (p-phenylenevinylene) or derivatives thereof, or poly (2,5-cenylenepinylene) or derivatives thereof are preferred, and polyvinyl More preferred are carbazol or derivatives thereof, polysilane or derivatives thereof, and polysiloxane derivatives having an aromatic amine in the side chain or main chain.
- the hole transport material used is a low molecule, it is preferable to use the hole transport material after separating it into a polymer binder.
- Polyvinylcarbazole or a derivative thereof can be obtained, for example, from a vinyl monomer by cationic polymerization or radical polymerization. .
- polysiloxane or its derivatives have almost no hole transporting property in the siloxane skeleton structure
- those having a structure of a low-molecular-weight one of the hole transporting materials in the side chain or main chain are preferably used.
- those having a hole transporting aromatic amine compound group in the side chain or main chain are exemplified.
- the method for forming the hole transport layer is not limited, but when a low molecular hole transport material is used, a method by film formation from a mixed solution with a polymer binder is exemplified. When a polymer hole transport material is used, a method of film formation from a solution is exemplified.
- the solvent used for film formation from a solution is not particularly limited as long as it can dissolve a hole transport material and Z or a polymer binder.
- the solvent include black mouth form, chloromethylene, chlorethane solvent of dichloroethane, ether solvents such as tetrahydrofuran, aromatic hydrocarbon solvents such as toluene and xylene, acetone, and methyl ethyl ketone.
- the solvent include ketonic solvents, ester solvents such as ethyl acetate, butyl acetate, and cetyl cellosolve acetate.
- Film formation methods from solution include spin coating method from solution, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire one coating method, dip coating method, spray coating Coating methods such as a printing method, a screen printing method, a flexographic printing method, an offset printing method, and an inkjet printing method can be used.
- the polymer binder is preferably one that does not extremely inhibit charge transport, and absorbs visible light. Those that are not strong are preferably used.
- Polymer binders include polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate. Examples include rate, polystyrene, polyvinyl chloride, and polysiloxane.
- the film thickness of the hole transport layer varies depending on the material used, and may be selected so that the drive voltage and the light emission efficiency are appropriate, but at least the thickness is such that no pinholes are generated. Therefore, if the thickness is too thick, the driving voltage of the device becomes high, which is not preferable. Therefore, the thickness of the hole transport layer is, for example, 1 nm to 1 m, and preferably 2 ⁇ ! It is ⁇ 500 nm, more preferably 5 nm to 200 nm.
- the polymer light-emitting device of the present invention has an electron transport layer (usually, the electron transport layer contains a low-molecular or high-molecular electron transport material), a known electron transport material is used.
- a known electron transport material is used.
- oxadiazole derivatives benzoquinone or derivatives thereof, anthraquinones or derivatives thereof, or metal complexes of 8-hydroxyquinoline or derivatives thereof, polyquinoline or derivatives thereof, polyquinoxaline or derivatives thereof, polyfluorene or derivatives thereof are preferred, 2— (4-Phenylyl) — 5— (4 1-t-butylphenyl) —1,3,4-Oxadiazole, benzoquinone, anthraquinone, tris (8-quinolinol) aluminum, polyquinoline are more preferred.
- the method for forming the electron transport layer is not particularly limited, but when a low molecular electron transport material is used, a vacuum deposition method from powder or a method by film formation from a solution or a molten state is exemplified. When using polymer electron transport materials, film formation from solution or molten state Each of the methods is illustrated. When forming a film from a solution or a molten state, a polymer binder may be used in combination.
- the solvent used for film formation from a solution is not particularly limited as long as it can dissolve an electron transport material and Z or a polymer binder.
- the solvent include chlorine based solvents such as chloroform, methyl chloride and dichloroethane, ether solvents such as tetrahydrofuran, aromatic hydrocarbon solvents such as toluene and xylene, acetone, methyl edyl ketone and the like.
- Examples include ketone solvents, ester solvents such as ethyl acetate, butyl acetate, and ethyl cellosolve acetate.
- Examples of the film forming method from a solution or a molten state include spin coating, casting, micro grapier coating, gravure coating, bar coating, roll coating, wire-bar coating, dip coating, and spray. Coating methods such as a coating method, a screen printing method, a flexographic printing method, an offset printing method, and an inkjet printing method can be used.
- polymer binder those that do not extremely inhibit charge transport are preferable, and those that do not strongly absorb visible light are preferably used.
- the polymer binder include poly (N-vinylcarbazol), polyaniline or a derivative thereof, polythiophene or a derivative thereof, poly (p-phenylenevinylene) or a derivative thereof, poly (2; 5_Chenylenepinylene) Alternatively, derivatives thereof, polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polyphenyl chloride, polysiloxane and the like are exemplified.
- the film thickness of the electron transport layer differs depending on the material used and may be selected so that the drive voltage and the light emission efficiency are appropriate, but at least a thickness that does not cause pinholes is required. Yes, if it is too thick, the drive voltage of the element increases, which is not preferable. Accordingly, the thickness of the electron transport layer is, for example, from 1 nm to 1 m, preferably 2 nm to 50 O nm, and more preferably 5 nm to 200 nm.
- charge transport layers provided adjacent to the electrodes those that have the function of improving the charge injection efficiency from the electrodes and have the effect of lowering the driving voltage of the device are particularly those of the charge injection layer (hole injection Layer, electron injection layer).
- the charge injection layer or insulating layer mentioned above adjacent to the electrode normally 0.5 to 4 mm in average film thickness
- a thin buffer layer may be inserted at the interface between the charge transport layer and the light emitting layer in order to improve the adhesion of the interface or prevent mixing.
- the order and number of layers to be stacked, and the thickness of each layer may be adjusted as appropriate in consideration of luminous efficiency and element lifetime.
- the polymer light emitting device provided with the charge injection layer is a polymer light emitting device provided with the charge injection layer adjacent to the cathode, and adjacent to the anode. Examples thereof include a polymer light emitting device provided with a charge injection layer.
- Examples of the specific structure of the polymer light-emitting device of the present invention include the following e) to p).
- Anode / charge injection layer no hole transport layer / light emitting layer electron transport layer charge injection layer no cathode As a specific example of the charge injection layer, a layer containing a conductive polymer, an anode and a hole transport layer An ionization point having an intermediate value between the anode material and the hole transport material included in the hole transport layer. Examples include a layer including a material having a temporal, a layer including a material provided between the cathode and the electron transport layer, and having a material having an intermediate electron affinity between the cathode material and the electron transport material included in the electron transport layer. It is done.
- the electric conductivity of the conducting polymer 1 0 5 10 3 is preferably not more than S / cm or more SZcm, leak current between light emitting pixels for the smaller is, 10- 5 S / cm or more 10 more preferably 2 SZcm less, 10- 5 S / cm or more and 10 1 S / cm or less is more preferred.
- the electric conductivity of the conducting polymer to less 10- 5 SZ cm or more 10 3 SZ cm, a suitable amount of ions are doped into the conducting polymer.
- the type of ions to be doped is an anion for the hole injection layer and a click for the electron injection layer.
- anion examples include polystyrene sulfonate ion, alkylbenzene sulfonate ion, camphor sulfonate ion, and the like.
- cation examples include lithium ion, sodium ion, potassium ion, tetraptyl ammonium ion, and the like.
- the thickness of the charge injection layer is, for example, 1 nm to 100 nm, and preferably 2 nm to 50 nm. '
- the material used for the charge injection layer may be appropriately selected in relation to the material of the electrode and the adjacent layer. Specifically, polyaniline and its derivatives, polythiophene and its derivatives, 'polypyrrole and its derivatives , Polyphenylene vinylene and derivatives thereof, polyphenylene pinylene and derivatives thereof, polyquinoline and derivatives thereof, polyquinoxaline and derivatives thereof, conductive polymers such as polymers containing an aromatic amine structure in the main chain or side chain, metal phthalocyanine (Copper phthalocyanine etc.), carbon etc. are illustrated.
- the insulating layer has a function of facilitating charge injection.
- the material for the insulating layer include metal fluorides, metal oxides, and organic insulating materials.
- the polymer light emitting device provided with the insulating layer include a polymer light emitting device provided with an insulating layer adjacent to the cathode, and a polymer light emitting device provided with an insulating layer adjacent to the anode.
- Examples of the specific structure of the polymer light-emitting device of the present invention include the following q) to ab): It is done.
- Anode Z insulating layer / hole transport layer Z light emitting layer / electron transport layer no insulating layer Z cathode The substrate on which the polymer light emitting device of the present invention is formed changes when an electrode is formed and an organic layer is formed.
- an electrode For example, glass, plastic, polymer film, silicon substrate, etc. are exemplified.
- the opposite electrode is preferably transparent or semi-transparent. '.
- At least one of the electrodes consisting of an anode and a cathode is transparent or translucent, and the anode side is transparent or translucent.
- anode material for example, a conductive metal oxide film, a translucent metal thin film, or the like is used. Specifically, a film made of indium oxide, zinc oxide, tin oxide, and a conductive glass made of indium, tin, oxide (ITO), indium, zinc, oxide, etc., which are composites thereof. (NESA, etc.), gold, platinum, silver, copper, etc. are used, and IT ⁇ , indium / zinc / oxide, and tin oxide are preferred. Examples of anode fabrication methods include vacuum deposition, sputtering, ion plating, and plating. In addition, as the anode, polyaniline or a derivative thereof, polythiophene Alternatively, an organic transparent conductive film such as a derivative thereof may be used.
- the film thickness of the anode can be appropriately adjusted in consideration of light transmittance and electric conductivity.
- the film thickness is 10 nm to 10 ⁇ , preferably 20 nm to 1 im. More preferably, it is 50 nm to 500 nm.
- a layer made of a phthalocyanine derivative, a conductive polymer, carbon, or an insulating layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like. May be provided.
- the material for the cathode used in the polymer light emitting device of the present invention is preferably a material having a small work function.
- metals such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, scandium, vanadium, zinc, yttrium, indium, cerium, samarium, europium, terbium, ytterbium, And alloys of two or more of them, or one or more of them and one or more of gold, silver, platinum, copper, manganese, titanium, cobalt, nickel, tungsten, tin, graphite or Graphite intercalation compounds are used.
- the cathode may have a laminated structure of two or more layers. -The film thickness of the cathode can be adjusted as appropriate in consideration of electrical conductivity and durability. For example, it is 10 nm to l 0 m, preferably 20 nm to lm. Preferably, it is 50 nm to 500 nm.
- a vacuum deposition method, a sputtering method, a laminating method in which a metal thin film is thermocompression bonded, or the like is used.
- a layer made of a conductive polymer, or a layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like may be provided between the cathode and the organic material layer.
- a protective layer for protecting the element may be attached. In order to stably use the polymer light-emitting device for a long period of time, a protective layer and It is preferable to wear z or a protective cover.
- protective layers include polymers (eg, poly (vinylidene chloride and copolymers thereof), polyesters, polyacrylonitrile, aromatic polyamides, liquid crystal polyesters and other gas barrier polymers), metal oxides, metal fluorides, metal borons, and the like. Chemicals can be used.
- the protective cover for example, a glass plate, a plastic plate having a surface subjected to low water permeability treatment, or the like can be used.
- a method for protecting the element with the protective cover a method in which the cover is bonded to the element substrate with a thermosetting resin or a photo-curing resin and sealed is preferable. If the space is maintained by using a spacer, it is easy to prevent the element from being scratched.
- the cathode can be prevented from being oxidized, and further, a desiccant such as barium oxide is adsorbed in the manufacturing process by installing in the space. It becomes easy to suppress moisture from giving a reward to Foster. Among these, it is preferable to take one or more measures.
- the polymer light emitting device of the present invention is useful for, for example, a display device such as a planar light source, a flat panel display device, a segment display device, a dot matrix display device, a liquid crystal display device, or a backlight thereof.
- a display device such as a planar light source, a flat panel display device, a segment display device, a dot matrix display device, a liquid crystal display device, or a backlight thereof.
- the planar anode and cathode may be arranged so as to overlap each other.
- a method in which a mask having a pattern-like window is provided on the surface of the planar light-emitting element, an organic layer of a non-light-emitting portion is formed to be extremely thick and substantially non- There are a method of emitting light, and a method of forming either the anode or the cathode, or both electrodes in a pattern.
- a segment type display element that can display numbers, letters, simple symbols, etc. is obtained. It is done. Further, in order to obtain a dot matrix element, both the anode and the cathode may be formed in stripes and arranged so as to be orthogonal to each other. Partial power error display and multi-power error display are possible by coating multiple types of polymer compounds with different emission colors or by using color filters or fluorescence conversion filters. Dot matrix element is passive drive It is also possible, and active driving may be performed in combination with TFT. These display elements can be used as a display device such as a computer, a television, a mobile terminal, a mobile phone, force navigation, a video power camera. .
- planar light-emitting element is a self-luminous thin type and can be suitably used as a planar light source for a backlight of a liquid crystal display device or a planar illumination light source. If a flexible substrate is used, it can also be used as a curved light source or display device.
- EXAMPLES Examples will be shown below for illustrating the present invention in more detail, but the present invention is not limited to these examples.
- the molecular weights of the compounds determined in the examples are the number average molecular weight and the weight average molecular weight in terms of polystyrene determined by gel permeation chromatography (GPC) using tetrahydrofuran as a solvent.
- the glass transition temperature (Tg) was measured by differential scanning calorimetry (DSC, trade name: DSC2920, manufactured by TA Instruments). Specifically, after holding the sample at 200 ° C for 5 minutes, it was rapidly cooled to -50 ° C and held for 30 minutes. Then, after raising the temperature to 30, measurements were taken up to 300 ° C at a rate of 5 ° C per minute.
- DSC differential scanning calorimetry
- Phosphonate ester obtained by reacting 2-bromomethyl-1,4-dibromobenzene with triethyl phosphite 1.54 g and 2- (diphenylphosphino) benzaldehyde 1 lg with tetrahydrofuran (dehydration) )
- a solution prepared by dissolving 0.7 g of potassium tert-butoxide in 10 g of tetrahydrofuran (dehydrated) was added dropwise to a solution dissolved in 30 g at room temperature. After the dropping, the reaction was continued at room temperature for 10 hours. The reaction was performed in a nitrogen gas atmosphere.
- Monomer (1) (manufactured by JFE Chemical Co., Ltd.) 0.58 g and monomer (PP—TPP) 0.23 g and 2, 2′-bibilidyl 0.66 g were charged into the reaction vessel, The reaction system was replaced with nitrogen gas. To this was added 70 g of tetrahydric-furan (dehydrated solvent) deaerated beforehand by bubbling with argon gas. Next, 1.15 g of bis (1,5-cyclooctagen) nickel (0) was added to the obtained mixed solution, and the mixture was stirred at room temperature for 10 minutes, and then reacted at 60 ° C. for 3 hours. The reaction was performed under a nitrogen gas atmosphere.
- reaction solution was cooled.
- methanol 60 m 1 ion exchange permanent 6 Om 1 mixed solution was poured into the obtained reaction solution and stirred for about 1 hour.
- the produced precipitate was filtered and collected. This precipitate was dried under reduced pressure and then dissolved in toluene.
- the obtained toluene solution was filtered to remove insoluble matters, and then the toluene solution was washed with about 1N hydrochloric acid aqueous solution, allowed to stand and separated, and then the toluene solution was recovered.
- the collected toluene solution was washed with about 3% by weight ammonia water, allowed to stand and separated, and then the toluene solution was collected.
- polymer compound 1 This polymer was referred to as polymer compound 1.
- the obtained polymer compound 1 had a polystyrene equivalent weight average molecular weight of 1.5 ⁇ 10 4 and a number average molecular weight of 7.7 ⁇ 10 3 .
- the glass transition temperature (Tg) was 71 ° C. ⁇
- Monomer (2) 0.63 g and monomer (PP-TPP) 0.23 g and 2, 2'-pipyridyl 0.66 g were charged into the reaction vessel, and the reaction system was filled with nitrogen gas. Replaced with. To this, 7 O g of tetrahydrofuran (dehydrated solvent) deaerated by publishing with argon gas in advance was added. To the obtained mixed solution, 1.15 g of bis (1,5-cyclooctagen) nickel (0) was added, stirred at room temperature for 10 minutes, and reacted with 6 O for 3 hours. The reaction was performed under a nitrogen gas atmosphere.
- reaction solution was cooled. Next, a mixed solution of 40 ml of methanol and 40 ml of ion-exchanged water was poured into this solution and stirred for about 1 hour. Next, the generated precipitate Filtered and collected. This precipitate was dried under reduced pressure and then dissolved in toluene. This toluene solution was filtered to remove insoluble matters, and then this toluene solution was washed with about 1 N aqueous hydrochloric acid solution, allowed to stand and separated, and then the toluene solution was recovered. Next, this toluene solution was washed with about 3% by weight ammonia water, allowed to stand and separated, and then the toluene solution was recovered.
- the recovered toluene solution was washed with ion-exchanged water, allowed to stand and separated, and the toluene solution was recovered. Next, the recovered toluene solution was poured into methanol and purified by reprecipitation. Next, the produced precipitate was collected, washed with methanol, and then dried under reduced pressure to obtain 0.05 g of a polymer.
- This polymer is referred to as polymer compound 2.
- the obtained polymer compound 2 had a polystyrene-equivalent weight average molecular weight of 1.0 ⁇ 10 4 and a number average molecular weight of 5.9 ⁇ 10 3 .
- the glass transition temperature (Tg) was 101 ° C.
- the structure of the repeating unit contained in the polymer compound 2 deduced from the preparation is shown below.
- Monomer raw material represented by the following structural formula (A) 95 g and 2- (diphenylphosphino) ⁇ Nsaldehyde (manufactured by Aldrich) 1. After charging 16 g into the reaction vessel, the inside of the reaction system was replaced with nitrogen gas.
- Monomer (2) 0.81 g and the monomer represented by the following structural formula (F-TPP) 0.19 g and 2, 2'-pipyridyl 0.57 g were charged into a reaction vessel, The system was replaced with nitrogen gas.
- each reaction solution was poured into a mixed solution of 40 ml of methanol and 40 ml of deionized water and re-precipitated, followed by stirring for about 1 hour.
- the produced precipitate was filtered and collected. This precipitate was dried under reduced pressure and then dissolved in toluene.
- the toluene solution was filtered to remove insoluble matters, and then the toluene solution was washed with about 5 wt% acetic acid aqueous solution, allowed to stand and separated, and then the toluene solution was recovered.
- this toluene solution was washed with 4% by weight ammonia water, left to stand and separated, and then the toluene solution was recovered.
- the recovered toluene solution was washed with ion-exchanged water, allowed to stand and separated, and then the toluene solution was recovered. Next, the recovered toluene solution was poured into methanol and purified by reprecipitation. Next, the produced precipitate was collected and washed with methanol, and then this precipitate was dried under reduced pressure to obtain 23 g of a polymer.
- This polymer is called polymer compound 3.
- the obtained polymer compound 3 had a polystyrene-reduced weight average molecular weight of 7. OX 10 4 and a polystyrene-equivalent number average molecular weight of 2.2 ⁇ 10 4 .
- the glass transition temperature (Tg) was 121.
- repeating unit C The structure of the repeating unit contained in polymer compound 3 estimated from the preparation is shown below.
- Repeat unit C
- Monomer (2) 0.81 g and the monomer (F-TPA) 0.18 g and 2, 2, and 1-pipyridyl 0.57 g were charged into the reaction vessel, and the reaction system was filled with nitrogen gas. Replaced with. To this was added 60 g of tetrahydrofuran (dehydrated solvent) deaerated beforehand by publishing with argon gas. To the resulting mixed solution, 1.0 g of bis (1,5-cyclooctagen) nickel (0) was added and reacted at room temperature for 23 hours. The reaction was performed in a nitrogen gas atmosphere.
- this reaction solution was poured into a mixed solution of 40 ml of methanol and 40 ml of deionized water to effect reprecipitation, followed by stirring for about 1 hour.
- the produced precipitate was filtered and collected. This precipitate was dried under reduced pressure and then dissolved in toluene.
- the toluene solution was filtered to remove insoluble matters, and then the toluene solution was washed with about 5 wt% acetic acid aqueous solution, allowed to stand and separated, and then the toluene solution was recovered.
- this toluene solution was washed with 4% by weight ammonia water, left to stand and separated, and then the toluene solution was recovered.
- the recovered toluene solution was washed with ion-exchanged water, allowed to stand and separated, and then the toluene solution was recovered. Next, the recovered toluene solution was poured into methanol and purified by reprecipitation. Next, the produced precipitate was collected, washed with methanol, and then dried under reduced pressure to obtain 31 g of a polymer. This polymer is called polymer compound 4.
- Polystyrene converted weight of the obtained polymer compound 4 The average molecular weight was 3.1 ⁇ 10 5 and the number average molecular weight was 6.9 ⁇ 10 4 .
- the glass transition temperature (Tg) was 128 ° C.
- the structure of the repeating unit contained in polymer compound 4 estimated from the preparation is shown below.
- Each of the polymer compounds 1 to 6 was spin-coated on a quartz plate from a 0.8 wt% toluene solution of the polymer compound to prepare a thin film of the polymer compound.
- the fluorescence spectrum of this thin film was determined by measurement at an excitation wavelength of 350 nm using a fluorescence spectrophotometer (manufactured by JB I NYVON—SPEX, trade name: F 1 u o ro o 1 o g).
- the spectrophotometer manufactured by Varian Co., Ltd.
- C ary 5 E was used to determine the value assigned by the absorbance at the excitation wavelength.
- Table 1 shows the measurement results of the fluorescence peak wavelength and fluorescence intensity.
- the polymer compound 3 of the present invention had higher fluorescence intensity than the polymer compound 4 having a triphenylamine structure in the side chain. ⁇ table 1 ⁇
- Iridium complex A A glass substrate with an ITO film with a thickness of 150 nm formed by sputtering is spin-coated with a solution of poly (ethylene dioxythiophene) ⁇ polystyrene sulfonic acid (Bayer, BaytronP). The film was formed to a thickness of 50 nm by drying on a hot plate at 200 ° C. for 10 minutes. Next, using the xylene solution prepared above, a film was formed by spin coating at a rotation speed of 800 rpm. The film thickness was about 70 nm.
- Example 5 A 1.5% by weight xylene solution of a mixture of polymer compound 2 and iridium complex A (2% by weight with respect to polymer compound 2) was prepared, and an EL device was prepared in the same manner as in Example 4. Produced.
- the light emitting layer was formed by spin coating at a rotational speed of 800 rpm.
- the film thickness was about 70 nm.
- strong EL emission peak wavelength: 635 nm from the iridium complex was obtained.
- the device exhibited light emission with a luminance of 100 cd / m 2 at an applied voltage of 10.4 V.
- the maximum luminance was about 160 cd / m 2 and high luminance was obtained.
- the polymer compound 3 obtained above was dissolved in xylene to prepare a xylene solution having a polymer concentration of 1.8% by weight.
- EL light emission having a peak at 45 Onm was obtained from this device.
- the EL emission color at a luminance of 100 c dZm 2 is the CIE color locus.
- the intensity of EL emission was almost proportional to the current density.
- the device started to emit light at an applied voltage of 4.2 V, and the maximum light emission efficiency was 0.20 cd / A.
- the polymer compound of the present invention is particularly useful as a light-emitting material, and has excellent heat resistance and fluorescence intensity.
- a polymer light emitting device using this polymer compound has high performance (for example, high luminance and high light emission efficiency), and is particularly useful for a planar light source, a display device and the like.
- this high molecular compound can be used also for an organic transistor and a solar cell.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007000169T DE112007000169T5 (de) | 2006-01-16 | 2007-01-12 | Polymerverbindung und lichtemittierende Vorrichtung auf Polymerbasis unter deren Verwendung |
GB0814905A GB2448459B (en) | 2006-01-16 | 2007-01-12 | Polymer compound and polymer light emitting device using the same |
US12/159,883 US20090056811A1 (en) | 2006-01-16 | 2007-01-12 | Polymer compound and polymer light emitting device using the same |
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JP2006-007046 | 2006-01-16 | ||
JP2006007046 | 2006-01-16 |
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WO2007081058A1 true WO2007081058A1 (ja) | 2007-07-19 |
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PCT/JP2007/050746 WO2007081058A1 (ja) | 2006-01-16 | 2007-01-12 | 高分子化合物およびそれを用いた高分子発光素子 |
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US (1) | US20090056811A1 (ja) |
DE (1) | DE112007000169T5 (ja) |
GB (1) | GB2448459B (ja) |
WO (1) | WO2007081058A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010024157A1 (ja) * | 2008-08-29 | 2010-03-04 | 住友化学株式会社 | 有機光電変換素子およびその製造方法 |
CN105524255A (zh) * | 2014-09-30 | 2016-04-27 | 中国科学院长春应用化学研究所 | 含芳基氧膦酰或芳基硫膦酰基团的聚合物、其制备方法及有机电致发光器件 |
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KR101156528B1 (ko) * | 2005-09-27 | 2012-06-20 | 삼성에스디아이 주식회사 | 신규한 질소계 반도체 화합물 및 이를 이용한 소자 |
JP5162888B2 (ja) * | 2005-12-02 | 2013-03-13 | 住友化学株式会社 | 高分子化合物およびそれを用いた高分子発光素子 |
JP2009001777A (ja) * | 2007-05-11 | 2009-01-08 | Sumitomo Chemical Co Ltd | 高分子化合物及びその製造方法、並びに、その高分子化合物を用いた発光材料、液状組成物、薄膜、高分子発光素子、面状光源、表示装置、有機トランジスタ及び太陽電池 |
JP5744061B2 (ja) | 2010-12-24 | 2015-07-01 | 株式会社Joled | 有機el素子およびその製造方法 |
WO2012141347A1 (ko) * | 2011-04-12 | 2012-10-18 | 메디소스플러스 주식회사 | 유기 태양 전지의 광활성층의 제조방법 및 이를 이용한 유기 태양 전지 |
US9873815B2 (en) * | 2015-04-30 | 2018-01-23 | Samsung Sdi Co., Ltd. | Polymer, organic layer composition, and method of forming patterns |
US10879314B2 (en) * | 2015-08-27 | 2020-12-29 | Sony Semiconductor Solutions Corporation | Photoelectric conversion element, imaging device, and electronic apparatus |
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WO2005040302A1 (de) * | 2003-10-22 | 2005-05-06 | Merck Patent Gmbh | Neue materialien für die elektrolumineszenz und deren verwendung |
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- 2007-01-12 DE DE112007000169T patent/DE112007000169T5/de not_active Withdrawn
- 2007-01-12 US US12/159,883 patent/US20090056811A1/en not_active Abandoned
- 2007-01-12 WO PCT/JP2007/050746 patent/WO2007081058A1/ja active Application Filing
- 2007-01-12 GB GB0814905A patent/GB2448459B/en not_active Expired - Fee Related
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WO2005040302A1 (de) * | 2003-10-22 | 2005-05-06 | Merck Patent Gmbh | Neue materialien für die elektrolumineszenz und deren verwendung |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010024157A1 (ja) * | 2008-08-29 | 2010-03-04 | 住友化学株式会社 | 有機光電変換素子およびその製造方法 |
JP2010080908A (ja) * | 2008-08-29 | 2010-04-08 | Sumitomo Chemical Co Ltd | 有機光電変換素子およびその製造方法 |
CN102132437A (zh) * | 2008-08-29 | 2011-07-20 | 住友化学株式会社 | 有机光电转换元件及其制造方法 |
CN105524255A (zh) * | 2014-09-30 | 2016-04-27 | 中国科学院长春应用化学研究所 | 含芳基氧膦酰或芳基硫膦酰基团的聚合物、其制备方法及有机电致发光器件 |
CN105524255B (zh) * | 2014-09-30 | 2018-02-13 | 中国科学院长春应用化学研究所 | 含芳基氧膦酰或芳基硫膦酰基团的聚合物、其制备方法及有机电致发光器件 |
Also Published As
Publication number | Publication date |
---|---|
US20090056811A1 (en) | 2009-03-05 |
GB2448459B (en) | 2010-12-15 |
DE112007000169T5 (de) | 2008-11-27 |
GB2448459A (en) | 2008-10-15 |
GB0814905D0 (en) | 2008-09-24 |
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