Title:
METHOD FOR PREPARING DOPED MXENE QUANTUM DOTS, AND OPTICAL FILM AND QLED
Document Type and Number:
WIPO Patent Application WO/2022/016785
Kind Code:
A1
Abstract:
Provided are a method for preparing doped MXene quantum dots and an optical film and QLED. The method for preparing doped MXene quantum dots comprises the following steps: providing MXene; dispersing MXene in a mixed solution of concentrated nitric acid and concentrated sulfuric acid to obtain an MXene quantum dot solution; and adding a sulfur source and/or a nitrogen source to the MXene quantum dot solution and reacting same to prepare doped MXene quantum dots. The MXene quantum dots obtained by dispersing the MXene with a mixed solution of concentrated nitric acid and concentrated sulfuric acid are more pure and more conducive to doping, and doping MXene quantum dots with an inorganic sulfur source and/or an inorganic nitrogen source can change the surface defects of the quantum dots and result in hydrogen bonds which change the size of quantum dots, such that the quantum dots emit light of different wavelengths.
Inventors:
YE WEIHAO (CN)
Application Number:
PCT/CN2020/136136
Publication Date:
January 27, 2022
Filing Date:
December 14, 2020
Export Citation:
Assignee:
TCL TECH GROUP CORP (CN)
International Classes:
C09K11/67; B82Y20/00; B82Y40/00; C01B21/082; C01B32/90; C01B32/914; C08J5/18; C08K3/14; C08K7/00; C08L33/02; C08L39/06; C08L71/02; H01L51/50
Foreign References:
| CN107650452A | 2018-02-02 | |||
| CN104150473A | 2014-11-19 | |||
| CN111040756A | 2020-04-21 | |||
| US20170088429A1 | 2017-03-30 | |||
| CN111137895A | 2020-05-12 | |||
| CN106252522A | 2016-12-21 | |||
| KR102028332B1 | 2019-10-04 | |||
| CN111187619A | 2020-05-22 |
Other References:
YAN XIANG; MA JUNFEI; YU KAIXUAN; LI JIAPENG; YANG LEI; LIU JIAQI; WANG JUNCHENG; CAI LULU: "Highly green fluorescent Nb2C MXene quantum dots for Cu2+ ion sensing and cell imaging", CHINESE CHEMICAL LETTERS, ELSEVIER, AMSTERDAM, NL, vol. 31, no. 12, 24 May 2020 (2020-05-24), AMSTERDAM, NL , pages 3173 - 3177, XP086419463, ISSN: 1001-8417, DOI: 10.1016/j.cclet.2020.05.020
FENG YEFENG; ZHOU FURONG; DENG QIHUANG; PENG CHENG: "Solvothermal synthesis of in situ nitrogen-doped Ti3C2 MXene fluorescent quantum dots for selective Cu2+ detection", CERAMICS INTERNATIONAL, ELSEVIER, AMSTERDAM., NL, vol. 46, no. 6, 9 December 2019 (2019-12-09), NL , pages 8320 - 8327, XP086054854, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2019.12.063
FENG YEFENG; ZHOU FURONG; DENG QIHUANG; PENG CHENG: "Solvothermal synthesis of in situ nitrogen-doped Ti3C2 MXene fluorescent quantum dots for selective Cu2+ detection", CERAMICS INTERNATIONAL, ELSEVIER, AMSTERDAM., NL, vol. 46, no. 6, 9 December 2019 (2019-12-09), NL , pages 8320 - 8327, XP086054854, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2019.12.063
Attorney, Agent or Firm:
JOHNSON INTELLECTUAL PROPERTY AGENCY (SHENZHEN) (CN)
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