Title:
HIGH-EFFICIENCY ORANGE-RED ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/026687
Kind Code:
A1
Abstract:
The present invention relates to a high-efficiency orange-red electroluminescent device. The structure is composed of an anode (ITO), a hole injection layer, a hole transport layer, an exciton blocking layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode, wherein the light-emitting layer is prepared from a quinoxaline fluorescent material doped host material. According to the present invention, OLEDs prepared respectively by using two new quinoxaline fluorescent materials as doping guests respectively achieve high EQEs, i.e., 32.0% and 19.9%.
Inventors:
TANG JIANXIN (CN)
TANG YANQING (CN)
ZHOU JINGXIONG (CN)
LI YANQING (CN)
ZENG YIXIN (CN)
TANG YANQING (CN)
ZHOU JINGXIONG (CN)
LI YANQING (CN)
ZENG YIXIN (CN)
Application Number:
PCT/CN2022/109767
Publication Date:
February 08, 2024
Filing Date:
August 02, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
H01L51/50
Foreign References:
| CN112038494A | 2020-12-04 | |||
| CN112079843A | 2020-12-15 | |||
| CN113527322A | 2021-10-22 | |||
| US20110147720A1 | 2011-06-23 | |||
| CN106711351A | 2017-05-24 | |||
| CN113066935A | 2021-07-02 | |||
| CN104638114A | 2015-05-20 |
Other References:
LINDNER BENJAMIN D., ZHANG YEXIANG, HÖFLE STEFAN, BERGER NANCY, TEUSCH CLAUDIA, JESPER MALTE, HARDCASTLE KENNETH I., QIAN XUHONG, : "N-Fused quinoxalines and benzoquinoxalines as attractive emitters for organic light emitting diodes", JOURNAL OF MATERIALS CHEMISTRY C, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 1, no. 36, 1 January 2013 (2013-01-01), GB , pages 5718, XP093136249, ISSN: 2050-7526, DOI: 10.1039/c3tc30828f
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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