Title:
ORANGE-RED LIGHT THERMALLY ACTIVATED DELAYED FLUORESCENT MATERIAL AND SYNTHESIS METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/026688
Kind Code:
A1
Abstract:
The present invention relates to an orange-red thermally activated delayed fluorescent material and a preparation method therefor. The material name is 4,4',4''-(dibenzo[f,h]pyrido[2,3-b]quinoxaline-3,6,11-triyl)tri(N,N-diphenylaniline) (3,6,11-triTPA-BPQ) and 4,4',4''-(dibenzo[f,h]pyrido[2,3-b]quinoxaline-3,6,12-triyl)tri(N,N-diphenylaniline) (3,6,12-triTPA-BPQ). The compound provided in the present invention has ultrahigh horizontal dipole orientation and good thermal stability, and is a typical thermally activated delayed fluorescent (TADF) material. The material has few synthesis and preparation steps, easily available raw materials, simple synthesis and purification processes and a high yield, and can be synthesized and prepared on a large scale.
Inventors:
TANG JIANXIN (CN)
ZHOU JINGXIONG (CN)
TANG YANQING (CN)
LI YANQING (CN)
ZENG XINYI (CN)
ZHOU JINGXIONG (CN)
TANG YANQING (CN)
LI YANQING (CN)
ZENG XINYI (CN)
Application Number:
PCT/CN2022/109768
Publication Date:
February 08, 2024
Filing Date:
August 02, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
C09K11/06; C07D471/04
Foreign References:
| CN111393436A | 2020-07-10 | |||
| IN201921041228A | 2021-04-16 | |||
| CN112592341A | 2021-04-02 | |||
| CN113735855A | 2021-12-03 | |||
| CN112961148A | 2021-06-15 | |||
| CN114621151A | 2022-06-14 |
Other References:
SUN KAIYONG, CAI ZHAOSHENG, JIANG JIANFENG, TIAN WENWEN, GUO WEI, SHAO JINGLING, JIANG WEI, SUN YUEMING: "Multi-substituted dibenzo[a,c]phenazine derivatives as solution-processable thermally activated delayed fluorescence materials for orange–red organic light-emitting diodes", DYES AND PIGMENTS, ELSEVIER APPLIED SCIENCE PUBLISHERS BARKING, GB, vol. 173, 1 February 2020 (2020-02-01), GB , pages 107957, XP093135398, ISSN: 0143-7208, DOI: 10.1016/j.dyepig.2019.107957
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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