Title:
DARK RED PHOTOTHERMALLY ACTIVATED DELAYED FLUORESCENCE MATERIAL, SYNTHESIS METHOD THEREFOR AND ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/082601
Kind Code:
A1
Abstract:
Disclosed are a dark red photothermally activated delayed fluorescence material, a synthesis method therefor and an electroluminescent device. The dark red photothermally activated delayed fluorescence material is a target compound, which is synthesized by a reaction of an electron donor and an electron acceptor and has a D-A molecular structure or a D-A-D molecular structure, wherein the electron acceptor is a planar electron acceptor with an ultra-low triplet energy level, and the triplet energy level of the target compound is in a range of 1.0-2.0 eV. The synthesis method comprises: preparation of a reaction solution; synthesis of a target compound; extraction; and purification treatment. The electroluminescent device comprises: a substrate layer, a hole transport and injection layer, a light-emitting layer, an electron transport layer and a cathode layer.
Inventors:
LUO JIAJIA (CN)
Application Number:
PCT/CN2018/125432
Publication Date:
April 30, 2020
Filing Date:
December 29, 2018
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C07D219/06; C07D265/38; C07D279/22; C09K11/06; H01L51/50; H01L51/54
Foreign References:
| CN105418533A | 2016-03-23 | |||
| CN105418533A | 2016-03-23 | |||
| JP2018127426A | 2018-08-16 | |||
| CN108358897A | 2018-08-03 | |||
| CN108011047A | 2018-05-08 |
Attorney, Agent or Firm:
ESSEN PATENT&TRADEMARK AGENCY (CN)
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