Title:
ORGANIC HOLE INJECTION MATERIAL AND USE
Document Type and Number:
WIPO Patent Application WO/2024/060203
Kind Code:
A1
Abstract:
The present invention relates to the field of organic light emission, and particularly, to an organic hole injection material and use. The organic hole injection material is a double five-membered ring derivative substituted by an electron-deficient group, and a double five-membered ring includes, but is not limited to, a double five-membered ring composed of thiophene, furan or selenophene groups. The synthesis of the material is simple, and large-scale production is facilitated. HOMO and LUMO energy level structures of the material are appropriate, thereby facilitating the injection of carriers. The material takes a substituent group and the double five-membered ring as a core, such that transmission of carriers in a device is facilitated. The material has a high LUMO/HOMO energy level, such that holes can be easily transmitted from an anode ITO to a hole transport layer. An organic light-emitting diode prepared from the described hole injection layer material is used and has relatively high light-emitting efficiency and device service life, can improve the photoelectric conversion efficiency when being applied to a perovskite solar cell, and has relatively high commercial value.
Inventors:
MENG HONG (CN)
CAI YU (CN)
LU KE (CN)
YAN ZHAOYI (CN)
HE YAOWU (CN)
HU ZHAO (CN)
CAI YU (CN)
LU KE (CN)
YAN ZHAOYI (CN)
HE YAOWU (CN)
HU ZHAO (CN)
Application Number:
PCT/CN2022/120874
Publication Date:
March 28, 2024
Filing Date:
September 23, 2022
Export Citation:
Assignee:
UNIV PEKING SHENZHEN GRADUATE SCHOOL (CN)
International Classes:
C08L65/00
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Other References:
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HUI‐JUN YUN; YUN‐JI LEE; SEUNG‐JIN YOO; DAE SUNG CHUNG; YUN‐HI KIM; SOON‐KI KWON: "Synthesis of Poly(benzothiadiazole‐co‐dithienobenzodithiophenes) and Effect of Thiophene Insertion for High‐Performance Polymer Solar Cells", CHEMISTRY - A EUROPEAN JOURNAL, JOHN WILEY & SONS, INC, DE, vol. 19, no. 39, 12 August 2013 (2013-08-12), DE, pages 13242 - 13248, XP071838187, ISSN: 0947-6539, DOI: 10.1002/chem.201300445
DING SHANG, NI ZHENJIE, HU MENGXIAO, QIU GEGE, LI JIE, YE JUN, ZHANG XIAOTAO, LIU FENG, DONG HUANLI, HU WENPING: "An Asymmetric Furan/Thieno[3,2‐ b ]Thiophene Diketopyrrolopyrrole Building Block for Annealing‐Free Green‐Solvent Processable Organic Thin‐Film Transistors", MACROMOLECULAR RAPID COMMUNICATIONS, WILEY-VCH, DE, vol. 39, no. 15, 1 August 2018 (2018-08-01), DE , pages 1800225, XP093150051, ISSN: 1022-1336, DOI: 10.1002/marc.201800225
Attorney, Agent or Firm:
SHENZHEN STANDARD PATENT & TRADEMARK AGENT LTD. (CN)
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