Arylamine compound, preparation method thereof, and organic light-emitting devices containing arylamine compound

A technology of compounds and aromatic amines, applied in the field of organic electroluminescent materials, can solve problems such as low luminous efficiency and inability to meet high refractive index

Inactive Publication Date: 2020-01-10
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the refractive index of existing CPL materials is generally below 1.9, which cannot meet the requirements of high refractive index, and the luminous efficiency is low

Method used

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  • Arylamine compound, preparation method thereof, and organic light-emitting devices containing arylamine compound
  • Arylamine compound, preparation method thereof, and organic light-emitting devices containing arylamine compound
  • Arylamine compound, preparation method thereof, and organic light-emitting devices containing arylamine compound

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Embodiment Construction

[0069] The present invention is further described below through examples and comparative examples. These examples are only used to illustrate the present invention, and the present invention is not limited to the following examples. Any modification or equivalent replacement of the technical solution of the present invention without departing from the scope of the technical solution of the present invention shall be covered by the protection scope of the present invention.

[0070] Synthesis Example 1: Synthesis of Compound CPL-1:

[0071]

[0072] Synthesis of intermediate CPL-1-3: in N 2 Under protection, add 2,7-dibromo-9,9-dimethylfluorene (100mmol) and aniline (210mmol) to benzene and heat and stir at 50°C for about 20min, then add sodium tert-butoxide (400mmol), tris tert-butylphosphine(4mmol)Pd 2 (dba) 3 (2mmol) was added, heated to reflux, and after the reaction was completed, the concentrated product was filtered through a silica gel funnel and recrystallized to...

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Abstract

The invention relates to an arylamine compound, a preparation method of the arylamine compound, and organic light-emitting devices containing the arylamine compound. The structure of the arylamine compound is disclosed in the invention. The arylamine compound disclosed by the invention is a cap layer material which has the advantages of high refractive index and excellent film stability and durability, and is made of a material without absorption in respective wavelength regions of blue, green and red. The arylamine compound not only can be used as a material of a cap layer CPL of the organiclight-emitting devices, but also can be used as a material used for hole transport layers, a hole injection layers and light-emitting layers. The arylamine compound can improve the light emitting efficiency of light emitting devices, and prolonging the service life of the devices, and is an ideal cathode cap layer material. The preparation method of the arylamine compound provided by the inventionis simple and feasible in synthesis process and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent materials, in particular to an aromatic amine compound, a preparation method thereof, and an organic light-emitting device containing the compound. Background technique [0002] Organic Light Emitting Display (OLED) is a new type of flat-panel display. Compared with Liquid Crystal Display (LCD), it has the advantages of thinness, lightness, wide viewing angle, active luminescence, and continuously adjustable luminous color. , low cost, fast response, low energy consumption, low driving voltage, wide operating temperature range, simple production process, high luminous efficiency and flexible display. [0003] After decades of development, OLED has come a long way. Although its internal quantum efficiency is close to 100%, its external quantum efficiency is only about 20%. Most of the light is confined inside the light-emitting device due to factors such as substrate mode loss,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D277/66C07D263/57C07D409/12C07D413/12C07D413/14C07D401/14C07D417/14C07D409/14C07D405/14C07D417/12C07D213/38C09K11/06H01L51/50H01L51/54
CPCC07D277/66C07D263/57C07D409/12C07D413/12C07D413/14C07D401/14C07D417/14C07D409/14C07D405/14C07D417/12C07D213/38C09K11/06C09K2211/1014C09K2211/1011C09K2211/1022C09K2211/1029C09K2211/1033C09K2211/1037C09K2211/1088C09K2211/1092H10K85/615H10K85/631H10K85/636H10K85/654H10K85/6576H10K85/6574H10K85/657H10K85/6572H10K50/00H10K50/15
Inventor 金成寿张雪汪康赵贺李贺毕岩马晓宇
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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