Title:
ORGANIC LIGHT-EMITTING MATERIAL, PREPARATION METHOD THEREFOR, AND ORGANIC LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/232770
Kind Code:
A1
Abstract:
Disclosed are an organic light-emitting material and a preparation method therefor, and an organic light-emitting device. The organic light-emitting material comprises oxadiazole-p-benzodioxazole. According to the organic light-emitting material and the preparation method therefor, and the organic light-emitting device of the present invention, the organic light-emitting material contains oxadiazole-p-benzodioxazole, which entails good planarity and a high visible π-π* absorption capacity, as well as a fluorescence emission capability with high quantum yields. As a result, the oxadiazole-p-benzodioxazole with a large π-conjugated system has efficient electron transport characteristics. As an efficient electron withdrawing group, the oxadiazole-p-benzodioxazole can increase the efficiency of charge transfer and effectively improve the luminous efficiency of organic light-emitting devices.
More Like This:
Inventors:
WANG YAMIN (CN)
Application Number:
PCT/CN2019/090621
Publication Date:
November 26, 2020
Filing Date:
June 11, 2019
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C07D413/14; C09K11/06
Foreign References:
| CN106831650A | 2017-06-13 | |||
| CN108276558A | 2018-07-13 | |||
| CN107254033A | 2017-10-17 | |||
| US6057048A | 2000-05-02 | |||
| CN101812057A | 2010-08-25 | |||
| CN1546477A | 2004-11-17 |
Attorney, Agent or Firm:
ESSEN PATENT&TRADEMARK AGENCY (CN)
Download PDF:
Previous Patent: ELECTRON TRANSPORT LAYER INK, MANUFACTURING METHOD THEREFOR, AND ELECTROLUMINESCENT COMPONENT
Next Patent: EASILY-ASSEMBLED PLATE
Next Patent: EASILY-ASSEMBLED PLATE