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Organic micromolecular photoelectric material

A technology of optoelectronic materials and small molecules, applied in the field of optoelectronic materials to achieve the effect of good hole transport ability

Inactive Publication Date: 2009-11-18
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some progress has been made in these research works, in terms of practical application, the performance of optoelectronic materials still needs to be improved.

Method used

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  • Organic micromolecular photoelectric material
  • Organic micromolecular photoelectric material
  • Organic micromolecular photoelectric material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: see figure 1 , the preparation of triphenylamine-structure a-triphenylamine:

[0045] Step (1): Add 0.10 mol of cyclopentadiene (2,1-b:3,4-b') dithiophene to a 250 mL three-necked flask, then add 120 mL of a mixture of chloroform and acetic acid with a volume ratio of 1:1, and stir . Slowly add 0.20 mol of N-bromosuccinamide (NBS) to it, and after refluxing the reactant at 100°C for 3 hours, pour the reaction solution into cold water, separate the organic phase, extract the aqueous phase twice with chloroform, and combine The organic phase was washed twice with water, dried with anhydrous magnesium sulfate, and then the solvent was removed by rotary evaporation; the remaining product was separated by silica gel column chromatography to obtain cyclopentadiene (2,1-b:3,4-b') bis(5 -bromothiophene).

[0046] Step (2): Add 0.10 mol of cyclopentadiene (2,1-b:3,4-b') bis(5-bromothiophene) and 60 mL of tetrahydrofuran (THF) into a dry flask protected by argon,...

Embodiment 2

[0048] Example 2: N, N, N', N'-tetraphenyl-benzene-1,4-diamine-structure a-N,N,N',N'-tetraphenyl-benzene-1,4-diamine Preparation of:

[0049] Using the same method as in Example 1, replace the raw material N, N-diphenyl-N-4-bromophenylamine in step (3) with N, N, N'-triphenyl-N'-4 -Bromophenyl-1,4-phenylenediamine, obtain organic small molecule optoelectronic material N, N, N', N'-tetraphenyl-benzene-1,4-diamine-structure a-N, N, N', N'-tetraphenyl-benzene-1,4-diamine.

Embodiment 3

[0051] Using the same method as in Example 1, replace the raw material N, N-diphenyl-N-4-bromophenylamine in step (3) with N, N, N'-triphenyl-N'-4 -Bromophenyl-1,1'-biphenyl-4,4'-diamine, organic small molecule optoelectronic material N,N,N',N'-tetraphenyl-1,1'-biphenyl- 4,4'-Diamine-Structure a-N,N,N',N'-tetraphenyl-1,1'-biphenyl-4,4'-diamine.

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PUM

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Abstract

The invention provides an organic micromolecular photoelectric material. The material has the following molecular structure: TP1-Ar-TP2, wherein Ar is an aromatic group, of which the structure is a structure a or structure b which is shown in a figure a or figure b respectively; * in the structure a or structure b is a position where a thiophene ring is connected with TP1 and TP2; and the TP1 and the TP2 are triphenylamine or N,N,N',N'-tetraphenyl-1,4-phenylene diamine or N,N,N',N'-tetraphenyl-1,1'-biphenyl- 4,4'-diamine. When the organic micromolecular photoelectric material provided by the invention is used as a cavity transport material of a cavity transport layer in a luminescent device, the micromolecular photoelectric material has good cavity transport capability.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic materials, and relates to a novel organic small molecule optoelectronic material. Background technique [0002] As an electron-rich system, triphenylamine and its derivatives have been widely used in the field of optoelectronics due to their strong electron-donating ability (easy to oxidize). In order to improve the optoelectronic properties of these materials, many methods have been used to modify them. Although some progress has been made in these research works, the performance of optoelectronic materials still needs to be improved in practical applications. Contents of the invention [0003] The object of the present invention is to provide a photoelectric material that can be used as a hole transport material in an optoelectronic device, and the hole transport ability is improved by implanting a thiophene structure in the molecules of triphenylamine and its derivatives. [0004] Th...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07D495/04H01L51/54H01L51/46
CPCY02E10/50Y02E10/549
Inventor 彭晶
Owner IRICO
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