Title:
COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR AND QUANTUM DOT LIGHT-EMITTING DIODE
Document Type and Number:
WIPO Patent Application WO/2021/253786
Kind Code:
A1
Abstract:
Disclosed are a composite material and a preparation method therefor and a quantum dot light-emitting diode. The composite material comprises n-type metal oxide nanoparticles and organic molecules represented by formula I attached to the surface of the n-type metal oxide nanoparticles, and carboxyl groups on the organic molecules are bound to the surface of the n-type metal oxide nanoparticles; in formula I, R1 is -(CH2)n-, and n is an integer greater than or equal to 1. The composite material not only effectively shortens the spacing of the metal oxide nanoparticles, but also ensures that the nanoparticles are not agglomerated; moreover, the organic molecules having bipolar groups are bound to the surface of the n-type metal oxide nanoparticles, so that the surface defects thereof can be reduced, the electron conduction capacity among the nanoparticles is enhanced, thereby improving the electron mobility of the composite material, and thus the electron transport capability of the composite material is enhanced.
Inventors:
NIE ZHIWEN (CN)
ZHANG XUANYU (CN)
LIU WENYONG (CN)
ZHANG XUANYU (CN)
LIU WENYONG (CN)
Application Number:
PCT/CN2020/139382
Publication Date:
December 23, 2021
Filing Date:
December 25, 2020
Export Citation:
Assignee:
TCL TECH GROUP CORP (CN)
International Classes:
H01L51/50; B82Y30/00; H01L51/54; H01L51/56
Foreign References:
| CN111384273A | 2020-07-07 | |||
| CN109962127A | 2019-07-02 | |||
| CN110970579A | 2020-04-07 | |||
| CN110205111A | 2019-09-06 | |||
| CN110484233A | 2019-11-22 | |||
| CN110911570A | 2020-03-24 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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