Title:
QUANTUM DOT MATERIAL AND PREPARATION METHOD, AND QUANTUM DOT LIGHT-EMITTING DIODE AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/258690
Kind Code:
A1
Abstract:
Disclosed is a quantum dot material, comprising quantum dot particles and first ligands that are bound to the surfaces of the quantum dot particles, the first ligands being MOF monomers, and the MOF monomers at least containing three first active groups capable of binding to quantum dot particles. The quantum dot material can reduce charge accumulation at the interface between a quantum dot light-emitting layer and an electron transport layer, thereby solving the problem of charge imbalance in a device due to the hole mobility being far lower than the electron mobility, and finally increasing the service life and the light-emitting efficiency of a quantum dot light-emitting device.
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Inventors:
ZHANG XUANYU (CN)
LIU WENYONG (CN)
LIU WENYONG (CN)
Application Number:
PCT/CN2020/138645
Publication Date:
December 30, 2021
Filing Date:
December 23, 2020
Export Citation:
Assignee:
TCL TECH GROUP CORP (CN)
International Classes:
C09K11/02; B82Y20/00; C09K11/88; H01L51/50
Foreign References:
| CN109935670A | 2019-06-25 | |||
| CN109928903A | 2019-06-25 | |||
| CN108102640A | 2018-06-01 | |||
| CN109976089A | 2019-07-05 | |||
| CN109868135A | 2019-06-11 |
Other References:
KAUR RAJNISH; VELLINGIRI KOWSALYA; KIM KI-HYUN; PAUL A.K.; DEEP AKASH: "Efficient photocatalytic degradation of rhodamine 6G with a quantum dot-metal organic framework nanocomposite", CHEMOSPHERE, PERGAMON PRESS, OXFORD., GB, vol. 154, 18 April 2016 (2016-04-18), GB , pages 620 - 627, XP029527707, ISSN: 0045-6535, DOI: 10.1016/j.chemosphere.2016.04.024
REN JIEJUN; ZHOU XIAOPENG; WANG YUHUA: "Dual-emitting CsPbX3@ZJU-28 (X = Cl, Br, I) composites with enhanced stability and unique optical properties for multifunctional applications", CHEMICAL ENGENEERING JOURNAL, ELSEVIER, AMSTERDAM, NL, vol. 391, 27 November 2019 (2019-11-27), AMSTERDAM, NL , XP086162566, ISSN: 1385-8947, DOI: 10.1016/j.cej.2019.123622
HE HUAJUN, YUANJING CUI, BIN LI, BO WANG, CHUANHONG JIN, JIANCAN YU, LIJIA YAO, YU YANG, BANGLIN CHEN, GUODONG QIAN: "Confinement of Perovskite-QDs within a Single MOF Crystal for Significantly Enhanced Multiphoton Excited Luminescence", ADVANCED MATERIALS, vol. 31, no. 6, 14 December 2018 (2018-12-14), XP055882970, DOI: 10.1002/adma.201806897
REN JIEJUN; ZHOU XIAOPENG; WANG YUHUA: "Dual-emitting CsPbX3@ZJU-28 (X = Cl, Br, I) composites with enhanced stability and unique optical properties for multifunctional applications", CHEMICAL ENGENEERING JOURNAL, ELSEVIER, AMSTERDAM, NL, vol. 391, 27 November 2019 (2019-11-27), AMSTERDAM, NL , XP086162566, ISSN: 1385-8947, DOI: 10.1016/j.cej.2019.123622
HE HUAJUN, YUANJING CUI, BIN LI, BO WANG, CHUANHONG JIN, JIANCAN YU, LIJIA YAO, YU YANG, BANGLIN CHEN, GUODONG QIAN: "Confinement of Perovskite-QDs within a Single MOF Crystal for Significantly Enhanced Multiphoton Excited Luminescence", ADVANCED MATERIALS, vol. 31, no. 6, 14 December 2018 (2018-12-14), XP055882970, DOI: 10.1002/adma.201806897
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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