WO2013178042A1 - 有机电致发光器件 - Google Patents
有机电致发光器件 Download PDFInfo
- Publication number
- WO2013178042A1 WO2013178042A1 PCT/CN2013/076237 CN2013076237W WO2013178042A1 WO 2013178042 A1 WO2013178042 A1 WO 2013178042A1 CN 2013076237 W CN2013076237 W CN 2013076237W WO 2013178042 A1 WO2013178042 A1 WO 2013178042A1
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- WO
- WIPO (PCT)
- Prior art keywords
- substituted
- group
- unsubstituted
- organic electroluminescent
- electroluminescent device
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/626—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/16—Electron transporting layers
Definitions
- the invention relates to an organic electroluminescent blue light device prepared by a novel organic electronic material, and belongs to the field of display technology of organic electroluminescent devices.
- organic electroluminescent devices have self-luminous, wide viewing angle, low power consumption, high efficiency, thin, rich color, fast response, wide temperature range, low driving voltage, flexible and bendable
- the unique advantages of a transparent display panel and environmental friendliness make organic electroluminescent device technology suitable for use in flat panel displays and next-generation lighting, as well as backlights for LCDs.
- An organic electroluminescent device is a device prepared by spin coating or depositing an organic material between two metal electrodes.
- a classical three-layer organic electroluminescent device comprises a hole transporting layer, a light emitting layer and an electron transporting layer. The holes generated by the anode pass through the hole transport layer and the electrons generated by the cathode are combined by the electron transport layer to form excitons in the light-emitting layer, and then emit light.
- the organic electroluminescent device can emit red light, green light and blue light by changing the material of the light-emitting layer. Therefore, stable, efficient and color-only organic electroluminescent materials play an important role in the application and promotion of organic electroluminescent devices, and are also an urgent need for the application of OLEDs for large-area panel displays.
- red and green materials have recently achieved great development and are also in line with the market demand for panels.
- blue light materials there are also a series of commercial materials, among which the early use of stilbene biphenyl (DPVB compounds), which is produced by such compounds, has higher efficiency, but Often the stability of these materials is relatively poor, and moreover, the luminescent color of such compounds belongs to sky blue, and y>0.15 in CIE values. Therefore, due to its poor temperature and impure color, it is very large. The use of such compounds in full color display devices is limited.
- Another type of blue light material is Kodak's ADN and tetra-tert-butyl fluorene.
- the present invention is to overcome the deficiencies of the above devices, and to provide an organic electroluminescence device which is excellent in electroluminescence efficiency, excellent in color purity, and long in life.
- An organic electroluminescent device comprising an anode, a cathode, and one or more organic layers, the organic layer comprising at least one compound having the formula I below
- R r R 8 is independently represented by hydrogen, halogen, cyano, nitro, C1-C8 alkyl, C1-C8 alkoxy, C2-C8 substituted or unsubstituted olefinic alkyl, C2-C8 Substituted or unsubstituted alkynyl, C1-C4 alkyl substituted or unsubstituted phenyl, C1-C4 alkyl substituted or unsubstituted naphthyl;
- ArrA ⁇ independently represents C1-C4 alkyl or C6-C30 aryl a substituted phenyl group, a C1-C4 alkyl group or a C6-C30 aryl substituted naphthyl group, a phenyl group, a naphthyl group, an N-aryl group (C6-C30) or a C1-C4 alkyl-substituted carbazolyl group, Dibenzo
- 1 ⁇ - can be independently represented as hydrogen, halogen, C1-C4 alkyl, C1-C4 alkyl substituted or unsubstituted phenyl, C1-C4 alkyl substituted or unsubstituted naphthyl;
- -A is independently represented by phenyl, tolyl, tert-butylphenyl, naphthyl, methylnaphthalene, biphenyl, diphenylphenyl, naphthylphenyl, diphenylbiphenyl, diarylamine Phenyl, N-phenylcarbazolyl, (9,9-dialkyl)fluorenyl, (9,9-dialkyl substituted or unsubstituted phenyl) anthracenyl, 9,9-spiroindyl .
- hydrogen, R 2 , R 3 , , R 7 may be independently represented by hydrogen, fluorine, methyl, ethyl, propyl, isopropyl, t-butyl, phenyl, naphthyl;
- a ri - Ar 4 is independently represented by phenyl, tolyl, naphthyl, methylnaphthalene, biphenyl, diphenylphenyl, naphthylphenyl, diphenylbiphenyl, (9,9-dialkyl) Mercapto, (9,9-dimethyl substituted or unsubstituted phenyl) anthracenyl, 9,9-spiropurinyl.
- Ar 2 , Ar 3 , Ar 4 are independently phenyl, naphthyl, biphenyl, ⁇ ⁇ is phenyl, naphthyl, biphenyl, diphenylphenyl, naphthylphenyl, Phenylbiphenyl, (9,9-dialkyl)indenyl, (9-tolyl, 9'-phenyl)indenyl, 9,9-spiropurinyl.
- R 2 , R 3 , and R 7 are hydrogen, and Ar 2 , Ar 3 and Ar 4 independently represent a phenyl group, a naphthyl group.
- the compound of formula (I) is the following structural compound
- the organic layer is one or more of a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, and an electron transport layer. It is to be noted that the above organic layers may be present in each of the organic layers as needed.
- the hole transport layer, the electron transport layer and/or the light-emitting layer contain the compound of the formula (I).
- the compound of the formula (I) is located in the light-emitting layer.
- the organic electroluminescent device of the present invention comprises a light-emitting layer having a light-emitting region in the range of 380 to 740 nm covering the entire white light region.
- the invention ranges from 380 to 550 nm, more preferably emits blue light, and ranges from 440 to 490 nm.
- the luminescent layer is an undoped system, or a host-guest doping system composed of a host material and a guest material.
- the compound of the formula (I) is a host material and/or a guest material.
- the concentration of the host material is from 20 to 99.9%, preferably from 80 to 99%, more preferably from 90 to 99% by weight based on the total of the luminescent layer. Accordingly, the concentration of the guest material is from 0.01 to 80%, preferably from 1 to 20%, more preferably from 1 to 10% by weight based on the total of the luminescent layer.
- the organic layer of the electronic device of the present invention has a total thickness of from 1 to 1000 nm, preferably from 1 to 500 nm, more preferably from 50 to 300 nm.
- the organic layer may be formed into a film by steaming or spin coating.
- the hole transporting layer and the hole injecting layer in the present invention have a material having a good hole transporting property and can efficiently transport holes from the anode to the organic light emitting layer. It may include small molecules and high molecular organic materials, and may include, but is not limited to, triarylamine compounds, biphenyldiamine compounds, thiazole compounds, oxazole compounds, imidazole compounds, terpenoids, phthalocyanine compounds, Hexanitrile hexaazatriphenylene, 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanodimethyl-p-benzoquinone (F4-TCNQ), polyvinyl Carbazole, polythiophene, polyethylene, polybenzenesulfonic acid.
- the organic electroluminescent layer of the present invention may contain, in addition to the fluorene vinyl compound of the present invention, the following compounds, but is not limited thereto, naphthalene compounds, terpenoids, terpenoids, phenanthrene compounds, quinone compounds , fluoranthene compounds, terpenoids, pentacene compounds, terpenoids, diarylene compounds, triphenylamine vinyl compounds, amine compounds, benzimidazoles, furan compounds, organometallic chelation Things.
- the organic electron transporting material used in the organic electronic device of the present invention is required to have good electron transporting property, and can efficiently transport electrons from the cathode to the light emitting layer, and the following compounds can be selected, but are not limited thereto, oxazole, thiazole Compounds, triazoles, triazazines, triazabenzenes, porphyrins, diazonium compounds, silicon-containing heterocyclic compounds, quinoline compounds, phenanthroline compounds , metal chelate, fluorine-substituted benzene compound.
- the organic electronic device of the present invention may be provided with an electron injecting layer as needed, which can effectively inject electrons from the cathode into the organic layer, mainly selected from alkali metal or alkali metal compounds, or selected from alkaline earth metals.
- an alkaline earth metal compound the following compounds may be selected, but are not limited thereto, lithium, lithium fluoride, lithium oxide, lithium nitride, lithium 8-hydroxyquinolate, hydrazine, cesium carbonate, 8-hydroxyquinolinium, calcium, Calcium fluoride, calcium oxide, magnesium, magnesium fluoride, magnesium carbonate, magnesium oxide.
- Figure 1 is a structural view of a device of the present invention
- 10 represents a glass substrate
- 20 represents an anode
- 30 represents a hole injection layer
- 40 represents a hole transport layer
- 50 represents a light-emitting layer
- 60 represents an electron transport layer
- 70 represents an electron injection layer
- 80 represents an electron injection layer. It is a cathode.
- Figure 2 is an iH NMR chart of Compound 110.
- the transparent conductive ITO glass substrate 10 (with the anode 20 on the surface) is sequentially washed with detergent solution and deionized water, ethanol, acetone, deionized water, and then treated with oxygen plasma for 30 seconds, followed by plasma treatment.
- CF X processing is sequentially washed with detergent solution and deionized water, ethanol, acetone, deionized water, and then treated with oxygen plasma for 30 seconds, followed by plasma treatment.
- P1 is vaporized to form a 50 nm thick hole transport layer 40.
- a compound 110 having a thickness of 20 nm was vapor-deposited on the hole transporting layer as the light-emitting layer 50.
- the device was fabricated to have a luminance of 980 cd/m 2 at a working voltage of 7 V, a current efficiency of 4.3 cd/A, a power efficiency of 2.1 lm/W, and emit blue light.
- Example 4 (method is the same as embodiment 3)
- the compound 110 was replaced with the compound 122 to prepare an organic electroluminescent device.
- the fabricated device has a luminance of 470 cd/m 2 at a working voltage of 7 V, a current efficiency of 4.6 cd/A, a power efficiency of 1.95 lm/W, and emits blue light.
- Example 3 In the same manner as in Example 3, the compound 110 was replaced with the following compound P3 to prepare a comparative organic electroluminescent device.
- the prepared device has a luminance of 289 cd/m 2 at a working voltage of 7 V, a current efficiency of 2.4 cd/A, a power efficiency of 1.1 lm/W, and emits blue light.
- Examples 3 and 4 are specific applications of the materials of the present invention.
- the devices produced, the present invention emit blue light, and the efficiency and brightness are higher than the comparative examples.
- the material of the present invention has high stability, and the organic electroluminescent device prepared by the present invention has high efficiency and light purity.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/404,607 US9871202B2 (en) | 2012-05-30 | 2013-05-26 | Organic electroluminescent device |
KR1020147031150A KR101775521B1 (ko) | 2012-05-30 | 2013-05-26 | 유기전기 발광소자 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210174028 | 2012-05-30 | ||
CN201210174028.8 | 2012-05-30 | ||
CN201310185322.3A CN103456897B (zh) | 2012-05-30 | 2013-05-17 | 有机电致发光器件 |
CN201310185322.3 | 2013-05-17 |
Publications (1)
Publication Number | Publication Date |
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WO2013178042A1 true WO2013178042A1 (zh) | 2013-12-05 |
Family
ID=49672414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/076237 WO2013178042A1 (zh) | 2012-05-30 | 2013-05-26 | 有机电致发光器件 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9871202B2 (zh) |
KR (1) | KR101775521B1 (zh) |
CN (1) | CN103456897B (zh) |
TW (1) | TWI495625B (zh) |
WO (1) | WO2013178042A1 (zh) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104037340B (zh) * | 2014-06-25 | 2017-01-25 | 上海道亦化工科技有限公司 | 一种有机电致发光器件 |
CN106033801B (zh) | 2015-03-09 | 2018-04-06 | 广东阿格蕾雅光电材料有限公司 | 有机电致发光器件 |
CN106033793B (zh) * | 2015-03-09 | 2018-11-13 | 广东阿格蕾雅光电材料有限公司 | 有机电致发光器件 |
CN106033798B (zh) * | 2015-03-09 | 2017-11-14 | 广东阿格蕾雅光电材料有限公司 | 有机电致发光器件 |
CN106032350B (zh) * | 2015-03-09 | 2019-03-01 | 广东阿格蕾雅光电材料有限公司 | 有机电子材料 |
KR102376004B1 (ko) * | 2017-10-30 | 2022-03-17 | 주식회사 엘지화학 | 화합물, 이를 포함하는 코팅 조성물, 이를 이용한 유기 발광 소자 및 이의 제조방법 |
US11276828B2 (en) * | 2019-01-21 | 2022-03-15 | Luminescence Technology Corp. | Organic compound and organic electroluminescence device using the same |
US11211568B2 (en) * | 2019-01-21 | 2021-12-28 | Luminescence Technology Corp. | Compound for organic electroluminescence device using the same |
KR102466029B1 (ko) | 2019-06-25 | 2022-11-10 | 주식회사 엘지화학 | 안트라센 화합물 및 이를 포함하는 유기 발광 소자 |
KR20210051439A (ko) | 2019-10-30 | 2021-05-10 | 주식회사 엘지화학 | 안트라센 화합물 및 이를 포함하는 유기 발광 소자 |
WO2021086099A1 (ko) | 2019-10-30 | 2021-05-06 | 주식회사 엘지화학 | 안트라센 화합물 및 이를 포함하는 유기 발광 소자 |
KR102542198B1 (ko) | 2019-11-14 | 2023-06-12 | 주식회사 엘지화학 | 화합물 및 이를 포함하는 유기 발광 소자 |
US20220384733A1 (en) | 2019-11-29 | 2022-12-01 | Lg Chem, Ltd. | Organic light emitting device |
US20230092585A1 (en) | 2019-11-29 | 2023-03-23 | Lg Chem, Ltd. | Organic light-emitting device |
CN113892196A (zh) | 2020-01-23 | 2022-01-04 | 株式会社Lg化学 | 有机发光器件 |
US11575090B2 (en) * | 2020-02-24 | 2023-02-07 | Luminescence Technology Corp. | Organic compound and organic electroluminescence device using the same |
KR102642173B1 (ko) | 2020-04-13 | 2024-02-28 | 주식회사 엘지화학 | 안트라센 화합물 및 이를 포함하는 유기 발광 소자 |
KR102683899B1 (ko) | 2020-06-19 | 2024-07-10 | 주식회사 엘지화학 | 유기 화합물을 포함하는 유기 발광 소자 |
WO2022030946A1 (ko) | 2020-08-05 | 2022-02-10 | 주식회사 엘지화학 | 조성물, 및 이를 포함하는 전자 소자 및 유기 발광 소자 |
JP2023537167A (ja) | 2020-08-05 | 2023-08-31 | エルジー・ケム・リミテッド | 組成物、これを含む電子素子および有機発光素子 |
KR102667151B1 (ko) | 2020-08-21 | 2024-05-20 | 주식회사 엘지화학 | 유기 화합물을 포함하는 유기 발광 소자 |
WO2022080993A1 (ko) | 2020-10-16 | 2022-04-21 | 주식회사 엘지화학 | 유기 화합물을 포함하는 유기 발광 소자 |
KR20220066648A (ko) | 2020-11-16 | 2022-05-24 | 주식회사 엘지화학 | 안트라센계 화합물 및 이를 포함하는 유기 발광 소자 |
KR20220151797A (ko) | 2021-05-07 | 2022-11-15 | 주식회사 엘지화학 | 안트라센계 화합물 및 이를 포함하는 유기 발광 소자 |
KR20230021608A (ko) | 2021-08-05 | 2023-02-14 | 주식회사 엘지화학 | 안트라센계 화합물 및 이를 포함하는 유기 발광 소자 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075603A2 (en) * | 2003-02-19 | 2004-09-02 | Lg Electronics Inc. | Organic electroluminescent device |
WO2008152939A1 (ja) * | 2007-06-15 | 2008-12-18 | Idemitsu Kosan Co., Ltd. | 芳香族ホウ素誘導体、有機エレクトロルミネッセンス素子及びそれを用いた有機エレクトロルミネッセンス材料含有溶液 |
CN102203076A (zh) * | 2008-10-30 | 2011-09-28 | 葛来西雅帝史派有限公司 | 新颖的有机电致发光化合物和使用该化合物的有机电致发光器件 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100799799B1 (ko) * | 1999-09-21 | 2008-02-01 | 이데미쓰 고산 가부시키가이샤 | 유기 전자발광 소자 및 유기 발광 매체 |
JP4255610B2 (ja) * | 1999-12-28 | 2009-04-15 | 出光興産株式会社 | 白色系有機エレクトロルミネッセンス素子 |
WO2002102118A1 (fr) * | 2001-06-06 | 2002-12-19 | Idemitsu Kosan Co., Ltd. | Dispositif a electroluminescence organique |
JP2004231563A (ja) * | 2003-01-30 | 2004-08-19 | Idemitsu Kosan Co Ltd | ビアントリル誘導体、それを含む発光性塗膜形成用材料及び有機エレクトロルミネッセンス素子 |
JP2007227717A (ja) * | 2006-02-24 | 2007-09-06 | Toyo Ink Mfg Co Ltd | 有機エレクトロルミネッセンス素子 |
CN101143830A (zh) * | 2007-01-31 | 2008-03-19 | 清华大学 | 一种有机电致发光材料及其应用 |
KR20110098293A (ko) * | 2010-02-26 | 2011-09-01 | 다우어드밴스드디스플레이머티리얼 유한회사 | 신규한 유기 발광 화합물 및 이를 포함하는 유기 발광 소자 |
KR101695351B1 (ko) * | 2012-07-25 | 2017-01-13 | 삼성디스플레이 주식회사 | 축합환 화합물 및 이를 포함하는 유기 전계 발광 소자 |
-
2013
- 2013-05-17 CN CN201310185322.3A patent/CN103456897B/zh active Active
- 2013-05-26 WO PCT/CN2013/076237 patent/WO2013178042A1/zh active Application Filing
- 2013-05-26 US US14/404,607 patent/US9871202B2/en active Active
- 2013-05-26 KR KR1020147031150A patent/KR101775521B1/ko active IP Right Grant
- 2013-05-29 TW TW102118961A patent/TWI495625B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075603A2 (en) * | 2003-02-19 | 2004-09-02 | Lg Electronics Inc. | Organic electroluminescent device |
WO2008152939A1 (ja) * | 2007-06-15 | 2008-12-18 | Idemitsu Kosan Co., Ltd. | 芳香族ホウ素誘導体、有機エレクトロルミネッセンス素子及びそれを用いた有機エレクトロルミネッセンス材料含有溶液 |
CN102203076A (zh) * | 2008-10-30 | 2011-09-28 | 葛来西雅帝史派有限公司 | 新颖的有机电致发光化合物和使用该化合物的有机电致发光器件 |
Also Published As
Publication number | Publication date |
---|---|
TWI495625B (zh) | 2015-08-11 |
CN103456897A (zh) | 2013-12-18 |
CN103456897B (zh) | 2016-03-09 |
KR20150011347A (ko) | 2015-01-30 |
TW201406702A (zh) | 2014-02-16 |
US9871202B2 (en) | 2018-01-16 |
KR101775521B1 (ko) | 2017-09-19 |
US20150144898A1 (en) | 2015-05-28 |
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