Arylamine compound and organic electroluminescent device containing same

A technology of compounds and aromatic amines, which is applied in the field of display devices, can solve the problems that the development has not yet been fully realized, and achieve the effects of excellent hole migration ability, accelerated injection, and reduced injection barrier

Pending Publication Date: 2022-04-12
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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  • Arylamine compound and organic electroluminescent device containing same
  • Arylamine compound and organic electroluminescent device containing same
  • Arylamine compound and organic electroluminescent device containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] Embodiment 1: the synthesis of compound H31

[0125]

[0126] In the three-necked flask, under the protection of nitrogen, add 0.01mol raw material A, 0.012mol raw material B, 0.02mol sodium carbonate, mixed solvent (150ml toluene, 45ml H 2 O), then add 1×10 -4 mol tetrakis(triphenylphosphine)palladium Pd(pph 3 ) 4 , heated to 105°C, refluxed for 24 hours, sampling and spotting the plate, showing that no bromide remains, and the reaction is complete. Naturally cooled to room temperature, filtered, and the filtrate was subjected to vacuum rotary evaporation (-0.09MPa, 85°C), passed through a neutral silica gel column (silica gel 100-200 mesh, the eluent was chloroform:n-hexane=1:2 (volume ratio) ), to obtain intermediate M. Elemental analysis structure (molecular formula C 24 h 15 ClBrN): Theoretical C 66.61; H 3.49; Br 18.46; Cl 8.19; N 3.24; Found: C 66.57; H 3.46; MS: The theoretical value is 431.01, and the measured value is 431.24.

[0127] In the three-n...

Embodiment 1-109

[0164] Carry out according to the method of device comparative example 1, the difference is that the organic material in step b), c), d), f) is replaced by the organic material shown in Table 3 respectively, wherein ET1:LiQ, E2:LiQ , E5:LiQ, E12:LiQ, E16:LiQ, E23:LiQ ratios are all 50:50.

Embodiment 110-121

[0166] Follow the method of Device Preparation Comparative Example 23, except that the organic materials in steps b), c), d), and f) are replaced with the organic materials shown in Table 4, respectively.

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Abstract

The invention discloses an arylamine compound, the structure of the compound is shown as a general formula (1), and the arylamine compound belongs to the technical field of semiconductors. According to the compound, arylamine serves as a basic framework, carbazole is connected to the position, relative to the meta-position or para-position of a nitrogen atom, of a benzene ring connected with the nitrogen atom in the arylamine, and aryl is connected to the position, relative to the ortho-position of the nitrogen atom, of the benzene ring. Due to the connection mode, the compound disclosed by the invention has excellent hole migration capability, film phase state stability and weather resistance, and when a hole transport material of an organic electroluminescent device is formed, the effects of improving the efficiency of the device and prolonging the service life of the device can be displayed.

Description

technical field [0001] The present invention relates to the field of semiconductor technology, in particular to a new aromatic amine compound and its use as a hole transport material in an organic electroluminescent device, an organic electroluminescent device comprising the aromatic amine compound, And a display device including the light emitting device. 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 mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/80C07D209/86C07D405/10C07D491/048H01L51/54H01L51/50
Inventor 王芳李崇张兆超崔明
Owner JIANGSU SUNERA TECH CO LTD
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