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Title:
CORE-SHELL STRUCTURE QUANTUM DOT FOR ELECTROLUMINESCENT DEVICE AND PREPARATION METHOD THEREFOR, AND ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/237199
Kind Code:
A1
Abstract:
The present application provides a core-shell structure quantum dot for an electroluminescent device and a preparation method therefor, and an electroluminescent device. The core-shell structure quantum dot comprises a core body and a surface shell layer; and the surface shell layer is ZnS1-xOx, wherein 0.1≤x≤0.9. The core-shell quantum dot of the present application can significantly improve the current density, brightness, and external quantum efficiency of the electroluminescent device prepared therefrom.

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Inventors:
SHAN YULIANG (CN)
WANG YUNJUN (CN)
Application Number:
PCT/CN2021/143412
Publication Date:
November 17, 2022
Filing Date:
December 30, 2021
Export Citation:
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Assignee:
SUZHOU XINGSHUO NANOTECH CO LTD (CN)
International Classes:
C09K11/02; H01L51/50
Foreign References:
CN110003884A2019-07-12
IN201741004351A2018-08-10
CN106957652A2017-07-18
CN111989571A2020-11-24
CN102086396A2011-06-08
CN104974759A2015-10-14
CN108929670A2018-12-04
US20150083969A12015-03-26
Other References:
LI XIAOXIA, CHEN ZHENYU, CHEN ZHONG, LIU NA, DAI WEN, LI CAN: "An experimental and theoretical study on the photoluminescence of O and Br co-doped ZnS quantum dots synthesized by a solid-state reaction method", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 845, 10 December 2020 (2020-12-10), CH , pages 1 - 9, XP093004967, ISSN: 0925-8388, DOI: 10.1016/j.jallcom.2020.155405
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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