Title:
MACROMOLECULAR THERMALLY ACTIVATED DELAYED FLUORESCENCE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/073527
Kind Code:
A1
Abstract:
Provided in the present invention is a macromolecular thermally activated delayed fluorescence (TADF) material, being a main chain polymerised TADF molecular structure with side chains linked to alkyl chains; the TADF macromolecular material of said structure has excellent TADF properties and solubility. Furthermore, the material disclosed in the present invention can be used for preparing electroluminescent devices by means of a solution processing method, and can achieve good device effects.
Inventors:
LUO JIAJIA (CN)
Application Number:
PCT/CN2018/125102
Publication Date:
April 16, 2020
Filing Date:
December 28, 2018
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C08G61/12; C09K11/06; H01L51/54
Foreign References:
| CN105176520A | 2015-12-23 | |||
| CN106589324A | 2017-04-26 | |||
| CN106117524A | 2016-11-16 |
Other References:
CAI, X. Y. ET AL.: "Rate-Limited Effect'' of Reverse Intersystem Crossing Process: the Key for Tuning Thermally Activated Delayed Fluorescence Lifetime and Efficiency Roll-Off of Organic Light Emitting Diodes", CHEMICAL SCIENCE, vol. 7, no. 7, 15 March 2016 (2016-03-15), pages 4264 - 4275, XP055566102, ISSN: 2041-6539, DOI: 10.1039/C6SC00542J
CHEN, D. J. ET AL.: "Efficient Solution-Processed Red All-Fluorescent Organic Light-Emitting Diodes Employing Thermally Activated Delayed Fluorescence Materials as Assistant Hosts: Molecular Design Strategy and Exciton Dynamic Analysis", JOURNAL OF MATERIALS CHEMISTRY C, vol. 5, no. 21, 4 May 2017 (2017-05-04), pages 5223 - 5231, XP055704118, ISSN: 2050-7526
CHEN, D. J. ET AL.: "Efficient Solution-Processed Red All-Fluorescent Organic Light-Emitting Diodes Employing Thermally Activated Delayed Fluorescence Materials as Assistant Hosts: Molecular Design Strategy and Exciton Dynamic Analysis", JOURNAL OF MATERIALS CHEMISTRY C, vol. 5, no. 21, 4 May 2017 (2017-05-04), pages 5223 - 5231, XP055704118, ISSN: 2050-7526
Attorney, Agent or Firm:
ESSEN PATENT&TRADEMARK AGENCY (CN)
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