Title:
LIGHT-EMITTING MATERIAL, PREPARATION METHOD THEREFOR, AND ORGANIC LIGHT-EMITTING DIODE MADE OF LIGHT-EMITTING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2018/014407
Kind Code:
A1
Abstract:
A light-emitting material, a preparation method therefor, and an organic light-emitting diode made of the light-emitting material. The light-emitting material has a single structure, a determined molecular weight, good solubility and film-forming property, wherein a thin film is stable in state; the material has a very high decomposition temperature and a relatively low sublimation temperature so as to easily sublimate into a high-purity light-emitting material, thus can be used in small molecular light-emitting diodes. The method for preparing the light-emitting material comprises: using p-bromothiophenol and 2-fluoro-4-bromobenzonitrile as starting raw materials, obtaining an intermediate of the light-emitting material by means of a series of simple reactions, and finally obtaining the light-emitting material by means of an Ullmann reaction or Suzuki reaction. The method features simple steps and high production yield. The described organic light-emitting diode, a light-emitting layer of which comprises the described light-emitting material, has relatively high light-emitting efficiency and stability.
Inventors:
LI XIANJIE (CN)
WU YUANCHUN (CN)
SU SHIJIAN (CN)
LI YUNCHUAN (CN)
WU YUANCHUN (CN)
SU SHIJIAN (CN)
LI YUNCHUAN (CN)
Application Number:
PCT/CN2016/095613
Publication Date:
January 25, 2018
Filing Date:
August 17, 2016
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
International Classes:
C07D409/14; C07D335/16; C07D417/14; C09K11/06; H01L51/50; H01L51/54
Foreign References:
| CN104761547A | 2015-07-08 | |||
| CN103189368A | 2013-07-03 | |||
| CN104263351A | 2015-01-07 | |||
| CN104293349A | 2015-01-21 | |||
| CN105154067A | 2015-12-16 | |||
| CN106167487A | 2016-11-30 |
Attorney, Agent or Firm:
COMIPS INTELLECTUAL PROPERTY OFFICE (CN)
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