JP4683886B2 - チオフェン誘導体および有機エレクトロルミネッセンス素子 - Google Patents
チオフェン誘導体および有機エレクトロルミネッセンス素子 Download PDFInfo
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- JP4683886B2 JP4683886B2 JP2004265935A JP2004265935A JP4683886B2 JP 4683886 B2 JP4683886 B2 JP 4683886B2 JP 2004265935 A JP2004265935 A JP 2004265935A JP 2004265935 A JP2004265935 A JP 2004265935A JP 4683886 B2 JP4683886 B2 JP 4683886B2
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- Prior art keywords
- organic
- hole transport
- transport layer
- general formula
- light emitting
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- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical group C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 2
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- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- QDLAGTHXVHQKRE-UHFFFAOYSA-N lichenxanthone Natural products COC1=CC(O)=C2C(=O)C3=C(C)C=C(OC)C=C3OC2=C1 QDLAGTHXVHQKRE-UHFFFAOYSA-N 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical group C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 125000005580 triphenylene group Chemical group 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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- 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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- 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
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/121—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from organic halides
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D333/72—Benzo[c]thiophenes; Hydrogenated benzo[c]thiophenes
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- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/126—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one sulfur atom in the ring
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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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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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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
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- Polymers & Plastics (AREA)
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Description
(上記一般式(1)におけるXはハロゲン原子であり、Rはアルキル基である。)
(上記一般式(2)におけるR’は水素原子、その塩、またはアルキル基であり、Yは2価の芳香環であり、mは1より大きい数を、nは0または1よりも大きい数である。)
ジブロム−o−トルエン5.27部を、三硫化リンの存在下にトルエン70部中にて8時間還流加熱することにより得られたベンゾ[C]チオフェン0.86部を、脱水塩化メチレン中で臭化銅0.56部と5時間還流加熱してジブロムベンゾチオフェン0.47部を得た。該臭素化物を発煙硫酸によりスルホン化した。該スルホン化物を脱水テトラヒドロフラン中で大過剰の硫酸ジブチルと12時間還流加熱し、未反応物および不純物を除去し、減圧乾燥させることにより下記式1aで表わされる本発明のチオフェン誘導体を得た(褐色粉末、分解温度157℃(ブチル基の脱離)、融点270℃)。
計算値 C=33.7、H=2.8、S=15.0、O=11.2
分析値 C=33.5、H=2.9、S=14.8、O=10.9
[NMRデータ]
1H−NMR(CDCl3)δ:1.22(t、3H)、1.81(m、2H)、2.43(m、2H)、4.47(q、2H)、7.33〜7.80(m、3H)
13C−NMR(CDCl3)δ:13.8、19.2、35,6、61.8、112.2、122.4、125.3、127.0、134.2
実施例1における硫酸ジブチルに代えて、硫酸ジメチル、硫酸ジエチル、硫酸ジプロピルを用いた以外は実施例1と同様にして上記式1aにおけるブチル基がメチル基(1b)、エチル基(1c)、プロピル基(1d)である本発明のチオフェン誘導体を得た。これらの分析結果を下記表1に示す。
実施例1で得られた前記式1aの化合物4.3部と2,5−ジブロモチオフェン2.4部とを塩化ニッケルおよびトリフェニルホスホンの存在下にジメチルホルムアミド中で4時間加熱還流して下記の共重合体(2a)0.7部を得た。得られた共重合体の重量平均分子量(GPC測定、ポリスチレン換算)は2万であり、該共重合体はトルエンに1質量%以上の濃度に可溶であった。
実施例5において2,5−ジブロモチオフェンを等モルの2,7−ジブロモフルオレンに代えた以外は実施例5と同様にして下記の共重合体(2b)を得た。得られた共重合体の重量平均分子量(GPC測定、ポリスチレン換算)は1.5万であり、該共重合体はトルエンに1質量%以上の濃度に可溶であった。
実施例5においてチオフェン誘導体1aに代えて、等モルの実施例2〜4のチオフェン誘導体1b、1c、1dを使用した以外は実施例5と同様にして下記の共重合体(2c、2d、2e)を得た。得られた共重合体の重量平均分子量(GPC測定、ポリスチレン換算)は1.5万〜2.5万であり、これらの共重合体はいずれもトルエンに1質量%以上の濃度に可溶であった。
ITO透明導電性膜が成膜されたガラス基板上に、洗浄およびUV/オゾン処理後、実施例5の共重合体(2a)の1質量%トルエン溶液をスピンコートし、30分間室温で乾燥した後、160℃のホットプレート上で1時間加熱乾燥することにより、膜厚60nmで共重合体のスルホブトキシ基からブチル基が離脱した共重合体からなる正孔輸送層を形成した。続いて赤色発光層用インキ(商品名ADS100TS、American Dye Source社製)を上記正孔輸送層上に滴下してスピンコートし、同様に100℃のホットプレート上で加熱乾燥することにより、膜厚80nmの赤色発光層を形成した。発光層形成後、0.2nm/sの成膜速度で膜厚10nmのカルシウム薄膜を真空蒸着し、さらにその上に2nm/sの成膜速度で膜厚80nmの銀薄膜を真空蒸着して電極を形成して有機EL素子を得た。得られた有機EL素子のITOの電極を可変直流電源の正極に、銀の電極を負極にそれぞれ接続し、直流電圧を印加したところ、発光層から最高発光効率0.5cd/Aの良好な赤色EL発光が得られた。
実施例8における共重合体2aに代えて、前記共重合体2b、2c、2dおよび2eをそれぞれ用いた以外は実施例8と同様にして4種の優れた赤色発光効率を有する有機EL素子が得られた。
Claims (3)
- 一対の対向電極と、これらによって挟持された有機正孔輸送層と有機発光層とを少なくとも有する有機エレクトロルミネッセンス素子において、上記有機正孔輸送層が請求項2に記載の有機正孔輸送層の形成材料組成物を含んでなることを特徴とする有機エレクトロルミネッセンス素子。
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JP2004265935A JP4683886B2 (ja) | 2004-09-13 | 2004-09-13 | チオフェン誘導体および有機エレクトロルミネッセンス素子 |
US11/219,935 US20060057426A1 (en) | 2004-09-13 | 2005-09-06 | Thiophene derivative and organic electroluminescent element |
GB0518141A GB2418920B (en) | 2004-09-13 | 2005-09-06 | Thiophene derivative and organic electroluminescent element |
DE102005043371A DE102005043371B4 (de) | 2004-09-13 | 2005-09-12 | Thiophenderivat und seine Verwendung in einem organischen elektrolumineszierenden Element |
US12/481,869 US8092857B2 (en) | 2004-09-13 | 2009-06-10 | Thiophene derivative and organic electroluminescent element |
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US8367850B2 (en) * | 2007-08-08 | 2013-02-05 | Universal Display Corporation | Benzo-fused thiophene or benzo-fused furan compounds comprising a triphenylene group |
US8652652B2 (en) | 2007-08-08 | 2014-02-18 | Universal Display Corporation | Single triphenylene chromophores in phosphorescent light emitting diodes |
KR101605213B1 (ko) | 2008-02-29 | 2016-03-21 | 솔베이 유에스에이 인크. | 평탄화제 및 소자 |
JP5848280B2 (ja) * | 2012-05-07 | 2016-01-27 | 富士フイルム株式会社 | 有機薄膜太陽電池、これに用いられる組成物および単量体、ならびに膜の製造方法 |
US20210246261A1 (en) * | 2017-07-07 | 2021-08-12 | Phillips 66 Company | Unsymmetrical benzothiadiazole-based random copolymers |
KR102602355B1 (ko) * | 2017-12-25 | 2023-11-17 | 가부시끼가이샤 레조낙 | 고체 전해 콘덴서 제조용 분산액 조성물 및 고체 전해 콘덴서의 제조 방법 |
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