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Organic compound, polymer, organic mixture, composition and organic electronic device

A technology of organic compounds and organic mixtures, which is applied in the fields of organic electronic devices, organic mixtures, compositions, organic compounds, and polymers, and can solve problems such as different carrier transport rates, shortened device life, and roll-off

Inactive Publication Date: 2019-04-19
GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of OLED light-emitting devices is generally made of a single-host material with a luminous body, but the single-host material will cause different carrier transfer rates, resulting in a serious roll-off of device efficiency under high brightness, resulting in shortened device life.

Method used

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  • Organic compound, polymer, organic mixture, composition and organic electronic device
  • Organic compound, polymer, organic mixture, composition and organic electronic device
  • Organic compound, polymer, organic mixture, composition and organic electronic device

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preparation example Construction

[0220] An embodiment of a method for preparing an organic electronic device includes forming a functional layer on a substrate by vapor deposition of an organic compound or an organic mixture, and co-evaporating the organic compound and organic functional material on a substrate To form a functional layer, to form a functional layer on a substrate by co-evaporating the organic mixture with organic functional materials, and to coat the composition on a substrate by printing or coating to form a functional layer. One kind.

[0221] Specifically, the printing or coating method is selected from one of the following methods, but not limited to the following methods: inkjet printing, nozzle printing, letterpress printing, screen printing, dip coating, spin coating, doctor blade Coating, roller printing, twisting roller printing, offset printing, flexographic printing, rotary printing, spraying, brushing, pad printing and slit extrusion coating, etc.

[0222] Further, the composition is ...

Embodiment 1

[0242]

[0243] (1) Synthesis of compound 1-1

[0244] The compound 10H-spiro[吖-9,9'-fluorene] (16.55g, 50mmol) and 4-bromo-2-chloro-1-fluorobenzene (10.50g, 50mmol) were added to a three-necked flask, with 200mL of N, N-Dimethylformamide (DMF) is stirred and dissolved, protected by nitrogen, then Cs is added 2 CO 3 (19.5g, 60mmol) and K 2 CO 3 . The reaction solution was stirred and refluxed for 12 hours and cooled. The reaction solution was poured into 1000 mL of water and filtered with suction. The filter cake was washed with a mixed solvent of ethanol and petroleum ether and filtered with suction. The filter cake was used with a mixed solvent of dichloromethane and petroleum ether ( DCM / PE) was recrystallized to obtain compound 1-1 (16.09 g, yield 62%) as a white solid.

[0245] (2) Synthesis of compound 1-2

[0246] Add compound 1-1 (15.57g, 30mmol) and 9-phenyl-carbazole-3-boronic acid (8.61g, 30mmol) into a three-necked flask, stir to dissolve with 200mL of toluene, protect ...

Embodiment 2

[0250]

[0251] (1) Synthesis of compound 2-1

[0252] Add compound 1-1 (10.38g, 20mmol) and 9-(1.1) biphenyl-carbazole-3-boronic acid (7.26g, 20mmol) into a three-necked flask, stir to dissolve with 200mL of toluene, protect with nitrogen, and then add four (Triphenylphosphine) Palladium (Pd(PPh 3 ) 4 ) (1.13g, 1mmol) and K 2 CO 3 (5.52g, 40mmol). The reaction solution was stirred and refluxed for 12 hours, cooled, and then washed three times with 100 mL of water, dried with anhydrous sodium sulfate, and evaporated to remove the solvent. The residue was purified by column with DCM / PE (1:15) to obtain a white solid, compound 2-1 (8.95g, yield 59%).

[0253] (2) Synthesis of compound 2

[0254] Compound 2-1 (7.59g, 10mmol) and K 2 CO 3 (2.76g, 20mmol) was added to a three-necked flask, stirred with 100mL DMA to dissolve, protected by nitrogen, and then added Pd(dba) 2 (278 mg, 0.5 mmol) and tricyclohexylphosphine tetrafluorophenylboronic acid (368 mg, 1 mmol). The reaction solution...

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Abstract

The invention relates to an organic compound, a polymer, an organic mixture, a composition and an organic electronic device. the above compound has the structure as shown in the general formula (I), wherein L1 is selected from an aromatic ring system group having 8 to 40 fused ring atoms, a substituted or unsubstituted heteroaromatic ring system group having 8 to 40 fused ring atoms, an aryloxy group having 5 to 40 ring-forming atoms, and a heteroaryloxy group having 5 to 40 ring-forming atoms. A is the structure with the general formula (II); B is the structure with the general formula (III-1) or the general formula (III-2). The above organic compound has excellent hole-transport property and stability, and can form a co-subject by cooperating with another subject with electron-transportproperty or bipolar property, and an organic luminescent device with high electroluminescent efficiency and long life can be obtained.

Description

Technical field [0001] The present invention relates to the field of organic electroluminescence technology, in particular to an organic compound, polymer, organic mixture, composition and organic electronic device. Background technique [0002] Organic light-emitting diodes (OLEDs) have excellent properties such as light weight, active light emission, wide viewing angle, high contrast, high luminous efficiency, low energy consumption, easy preparation of flexible and large-size panels, and are regarded by the industry as the most promising next-generation display technology . In order to improve the luminous efficiency of organic light-emitting diodes and promote the large-scale industrialization process of organic light-emitting diodes, there is an urgent need to solve the key problems of organic light-emitting diodes in terms of light-emitting performance and lifetime. [0003] To obtain high-performance organic light-emitting diodes, the host material is the key. At present, ...

Claims

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Application Information

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IPC IPC(8): C07D471/10C07D519/00C08G61/12H01L51/54
CPCC07D471/10C07D519/00C08G61/124C08G61/126C08G2261/3241C08G2261/3243C08G2261/3245C08G2261/512H10K85/111H10K85/113H10K85/624H10K85/625H10K85/626H10K85/636H10K85/633H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K85/657H10K85/342H10K85/346H10K85/40
Inventor 杨曦潘君友王璞
Owner GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS
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