Title:
ELECTROLUMINESCENT MATERIAL, MANUFACTURING METHOD FOR ELECTROLUMINESCENT MATERIAL, AND LIGHT EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/220397
Kind Code:
A1
Abstract:
Provided are an electroluminescent material, a manufacturing method for the electroluminescent material, and a light emitting device. A fluorenyl group having good planarity and strong visible π-π* absorption is selected as a π-based system, and a compound comprising a carbazole group is introduced as an electron donor and a compound comprising aniline is introduced as an electron acceptor, thereby realizing the electroluminescent material that can emit blue light and has high electroluminescence efficiency, the manufacturing method for the electroluminescent material, and the light emitting device.
Inventors:
WANG YAMIN (CN)
Application Number:
PCT/CN2019/086650
Publication Date:
November 05, 2020
Filing Date:
May 13, 2019
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C09K11/06; C07D209/86; H01L51/50; H01L51/54
Domestic Patent References:
| WO2017142304A1 | 2017-08-24 |
Foreign References:
| CN101573324A | 2009-11-04 | |||
| CN101573324A | 2009-11-04 | |||
| CN105503846A | 2016-04-20 |
Other References:
HOU, MINNA ET AL.: "Highly Efficient Deep-Blue Electroluminescence from a A−π−D−π−A Structure Based Fluoresence Material with Exciton Utilizing Efficiency above 25%", ACS APPLIED ENERGY MATERIALS, no. 1, 19 June 2018 (2018-06-19), XP055750715, DOI: 20200112151017X
Attorney, Agent or Firm:
ESSEN PATENT&TRADEMARK AGENCY (CN)
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