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Diarylamine compound and organic electroluminescent device containing same

A compound and aromatic amine technology, applied in the field of organic electroluminescent devices, can solve the problems such as development has not been fully realized, and achieve the effects of excellent film phase stability, excellent hole migration ability, and high glass transition temperature

Pending Publication Date: 2022-02-22
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development of materials for stable and efficient organic material layers for organic electroluminescent devices has not been fully realized

Method used

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  • Diarylamine compound and organic electroluminescent device containing same
  • Diarylamine compound and organic electroluminescent device containing same
  • Diarylamine compound and organic electroluminescent device containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] Embodiment 1: the synthesis of compound 1

[0143]

[0144] In the three-necked flask, under the protection of nitrogen, add 0.012mol raw material X-1, 0.01mol raw material P-1, 150ml toluene and stir to mix, then add 5×10 -5 mol Pd 2 (dba) 3 , 5×10 -5 mol of tri-tert-butylphosphine, 0.03mol of sodium tert-butoxide, heated to reflux for 12 hours, sampled and plated, showed that no amino compound remained, and the reaction was complete. Natural cooling, filtration, rotary evaporation of the filtrate, passing through a silica gel column (silica gel 100-200 mesh, eluent: chloroform: n-hexane = 30:70 (volume ratio)), to obtain the intermediate naturally cooled to room temperature, filtration, rotary evaporation of the filtrate Until there is no fraction, pass through a neutral silica gel column to obtain intermediate M-1 with a purity of 98.63% and a yield of 75.06%;

[0145] In the three-necked flask, under the protection of nitrogen, add 0.01mol intermediate M-1, 0...

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Abstract

The invention discloses a diarylamine compound and an organic electroluminescent device containing the same, belonging to the technical field of semiconductor materials. The structure of the compound is shown as a general formula (1). The middle of the diarylamine compound is bridged by an aromatic ring, a fluorenyl group is connected to an amido group, and the diarylamine compound has excellent hole transport capacity, membrane phase stability and weather resistance. When a hole transport material of the organic electroluminescent device is formed by using the novel arylamine-based compound, effects such as improved device effect, reduced driving voltage, and prolonged lifetime can be obtained.

Description

technical field [0001] The present invention relates to the technical field of semiconductors, and more specifically relates to a novel bisarylamine compound and an organic electroluminescent device comprising the bisarylamine compound which is suitable for various display devices. Background technique [0002] The carriers (holes and electrons) in the organic electroluminescent device (OLED) are respectively injected into the device by the two electrodes of the device under the drive of the electric field, and meet in the organic light-emitting layer to recombine and emit light. High-performance organic electroluminescent devices require various organic functional materials to have good photoelectric properties. For example, as a charge transport material, good carrier mobility is required. The injection and transport characteristics of hole injection layer materials and hole transport layer materials used in existing organic electroluminescent devices are relatively weak,...

Claims

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Application Information

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IPC IPC(8): C07C211/61C09K11/06H01L51/50H01L51/54
CPCC07C211/61C09K11/06C09K2211/1011C09K2211/1014H10K85/624H10K85/626H10K85/633H10K85/615H10K85/631H10K50/18
Inventor 尚书夏王芳赵四杰李崇
Owner JIANGSU SUNERA TECH CO LTD
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