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Triarylated amine derivative and organic light-emitting device

A technology for electroluminescent devices and derivatives, applied in the fields of electro-solid devices, electrical components, organic chemistry, etc., can solve the problems of reduced device efficiency, shortened life, poor thermal stability, etc., and achieve the effect of good hole transport ability

Inactive Publication Date: 2019-03-15
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Generally speaking, the future direction of organic electroluminescent devices is to develop high-efficiency, high-brightness, long-life, low-cost white light devices and full-color display devices, but the industrialization process of this technology still faces many key problems, such as space Hole transport materials mainly use triarylamine compounds and benzidine compounds, but they are not easy to form films and have poor thermal stability, resulting in reduced device efficiency and shortened life. Hole transport materials with good stability, thereby improving the efficiency and life of devices, has become the main task at present

Method used

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  • Triarylated amine derivative and organic light-emitting device
  • Triarylated amine derivative and organic light-emitting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] [Example 1] Synthesis of compound 1

[0076]

[0077]Step1: Add 2-amino-benzo[B]naphtho[2,3-D]furan (2.33g, 10mmol), 2-bromo-benzo[B]naphtho[2,3-D] into the reactor furan) (2.97g, 10mmol), Pd 2 (dba) 3 (0.21g, 0.25mmol), P(t-Bu) 3 (0.18g, 0.84mmol), NaOt-Bu (2.8g, 25mmol), 100mL of toluene solution, reacted at 100°C for 24h, extracted the organic phase with diethyl ether and water after the reaction, and washed the organic layer with MgSO 4 Dry, concentrate the organic matter, go through column chromatography, and recrystallize to obtain intermediate 10-1 (3.51 g, 78%).

[0078] Step2: Add intermediate 10-1 (4.50g, 10mmol), 2-bromotriphenylene (3.07g, 10mmol), Pd to the reactor 2 (dba) 3 (0.21g, 0.25mmol), P(t-Bu) 3 (0.18g, 0.84mmol), NaOt-Bu (2.8g, 25mmol), 100mL of toluene solution, reacted at 100°C for 24h, extracted the organic phase with diethyl ether and water after the reaction, and washed the organic layer with MgSO 4 Dry, concentrate the organic matte...

Embodiment 2

[0079] [Example 2] Synthesis of compound 30

[0080] Compound 30 (5.96 g, 78%) was obtained according to the synthesis method of compound 10 in Example 1.

[0081]

Embodiment 3

[0082] [Example 3] Synthesis of compound 94

[0083] Compound 94 (5.34 g, 80%) was obtained according to the synthesis method of compound 10 in Example 1.

[0084]

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Abstract

The invention provides a triarylated amine derivative and an organic light-emitting device, and relates to the technical field of organic light-emitting materials. A furan or thiophene derivative group, a fluorene derivative group, and a triphenylene group are connected on a triarylated amine main structure to obtain the triarylated amine derivative, the film forming property of the triarylated amine derivative is good, the thermal stability is good, the triarylated amine derivative has an excellent hole transfer capability, is simple to synthesize and easy to operate, can be applied into theorganic light-emitting device to serve as a hole transfer layer, effectively solves the problems of poor thermal stability of a hole transfer material in the organic light-emitting device, difficultyin film forming, low light emitting efficiency of the device and serious roll-off, and the organic light emitting device has the advantages of low drive voltage, high light emitting efficiency and long service life.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to a triarylamine derivative and an organic electroluminescence device thereof. Background technique [0002] Since 1963, Pope has used a single crystal of anthracene (10-20 μm) to apply a voltage of 400V to observe blue luminescence. Then W.Helfrich and others continued their research on this basis, and finally lowered the voltage to 100V. In 1982, P.S.Vincet used vacuum coating to prepare 50nm thick anthracene film, which further reduced the driving voltage to 30V. However, the film-forming quality of anthracene is not high, so that the carrier injection efficiency is low, and the device stability is very poor. Until 1987, C.W.Tang et al. of Kodak Corporation of the United States adopted the method of vacuum deposition coating, using Alq 3 As a light-emitting layer, TPD acts as a hole transport layer to form a "sandwich" structure device, successfully ac...

Claims

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Application Information

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IPC IPC(8): C07D307/77C07D333/50H01L51/50H01L51/54
CPCC07D307/77C07D333/50H10K85/623H10K85/624H10K85/622H10K85/615H10K85/626H10K85/6576H10K85/6574H10K50/15
Inventor 董秀芹蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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