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Novel organic material and application thereof in electroluminescent devices

A technology of organic materials and organic light-emitting layers, applied in the field of organic electroluminescence display, can solve the problems of affecting the service life of materials, the destruction of film uniformity, and low glass transition temperature, so as to reduce the probability of stacking, improve the yield of OLED, Effect of High Hole Mobility

Inactive Publication Date: 2018-08-17
北京燕化集联光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The organic hole transport materials currently reported are generally small in molecular weight and have a low glass transition temperature. During the use of the material, repeated charging and discharging will easily crystallize the material and destroy the uniformity of the film, thus affecting the service life of the material.

Method used

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  • Novel organic material and application thereof in electroluminescent devices
  • Novel organic material and application thereof in electroluminescent devices
  • Novel organic material and application thereof in electroluminescent devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067]

[0068] The synthetic route is as follows:

[0069]

[0070] 1) Synthesis of compound 1-2

[0071]1000 milliliter three-neck flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), aniline 27.9g (purity 99%, 0.3mol), 44.2g1-bromo-2-methylnaphthalene (purity 99%, 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obtained 43g of a yellow product with a purity of 99%...

Embodiment 2

[0076]

[0077] The synthetic route is as follows:

[0078]

[0079] 1) Synthesis of compound 2-1

[0080] 1000 milliliter three-neck flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), aniline 27.9g (purity 99%, 0.3mol), 44.2g1-bromo-2-methylnaphthalene (purity 99%, 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obtained 41 g of a yellow product with a purity of 9...

Embodiment 3

[0085]

[0086] The synthetic route is as follows:

[0087]

[0088] 1) Synthesis of compound 3-1

[0089] 1000 milliliter three-neck flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), aniline 27.9g (purity 99%, 0.3mol), 44.2g1-bromo-2-methylnaphthalene (purity 99%, 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obtained 43.3 g of a yellow product with a purity of...

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PUM

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Abstract

The invention relates to the field of OLED (organic light emitting diode) display, in particular to a novel organic material and application thereof in electroluminescent devices. A structural formulaof the organic material is as shown in the specific. The novel OLED material is characterized in that by taking a fused ring compound as a center, taking a methyl(1-naphthylamine) as a terminal groupand introducing substituent(N-phenyl-1-naphthylamine) with a hole transport performance, the novel OLED material with the hole transport performance is obtained. The material is high in hole mobility, high in film stability and appropriate in molecular energy level, can be applied as a hole transport material in the field of organic electroluminescence and has a promising application prospect.

Description

technical field [0001] The invention relates to a novel organic material and its application in organic electroluminescence devices, belonging to the technical field of organic electroluminescence display. Background technique [0002] The application of organic electroluminescent (OLED) materials in information display materials, organic optoelectronic materials and other fields has great research value and bright application prospects. With the development of multimedia information technology, the performance requirements of flat panel display devices are getting higher and higher. At present, the main display technologies include plasma display devices, field emission display devices and organic electroluminescent display devices (OLED). Among them, OLED has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, and rich colors. Compared with liquid crystal display devices, OLED does not require a backlight, has a wider v...

Claims

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Application Information

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IPC IPC(8): C07C211/61C07D471/04C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07C211/61C07D471/04C09K2211/1011C09K2211/1014C09K2211/1007C09K2211/1029H10K85/623H10K85/624H10K85/615H10K85/622H10K85/636H10K85/626H10K85/633H10K85/6572H10K50/11
Inventor 曹占广杭德余班全志李继响段陆萌纪秦思程丹丹王敬丽马天凯
Owner 北京燕化集联光电技术有限公司
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