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1. (WO2018028312) METHOD OF PREPARING LUMINESCENT NANO-SHEET, LUMINESCENT NANO-SHEET MATERIAL, LUMINESCENT NANO-SHEET FILM, BACK LIGHT, AND LIQUID CRYSTAL DISPLAY APPARATUS

Pub. No.:    WO/2018/028312    International Application No.:    PCT/CN2017/089319
Publication Date: Fri Feb 16 00:59:59 CET 2018 International Filing Date: Thu Jun 22 01:59:59 CEST 2017
IPC: C09K 11/02
C09K 11/06
C07F 7/24
C07F 1/08
C07F 7/22
C07F 7/30
C07F 13/00
G02F 1/13357
B82Y 20/00
B82Y 40/00
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
BEIJING INSTITUTE OF TECHNOLOGY
Inventors: ZHONG, Haizheng
LIU, Lige
Title: METHOD OF PREPARING LUMINESCENT NANO-SHEET, LUMINESCENT NANO-SHEET MATERIAL, LUMINESCENT NANO-SHEET FILM, BACK LIGHT, AND LIQUID CRYSTAL DISPLAY APPARATUS
Abstract:
A method of preparing luminescent nano-sheets includes preparing a precursor emulsion solution containing a metal halide and RNH 3X, with the molar ratio of metal halide to RNH 3X in a range of approximately 0.6 to approximately 0.8; demulsifying the precursor emulsion solution to obtain perovskite quantum dots and a demulsified solution; and forming the luminescent nano-sheets by allowing the perovskite quantum dots to self-assemble into nano-sheets. X represents halogen, and R represents a group selected from alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, aryl, heteroaryl, and heterocyclyl.