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Preparation and Research of Perovskite Quantum Dots Powder Based on RbCl Doped CsPbBr 3
Author(s) -
Geng Yuxiao,
Yang Bobo,
Xiang Yanrong,
Shi Mingming,
Hu Rongrong,
Guo Chunfeng,
Li Yuefeng,
Zou Jun
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202101737
Subject(s) - quantum dot , doping , materials science , wavelength , perovskite (structure) , ion , optoelectronics , ultraviolet , ionic radius , quantum , ionic bonding , nanotechnology , chemistry , physics , quantum mechanics , crystallography
Researchers have achieved precise control of the size of quantum dots by using the quantum confinement effect. Rb + and Cs + with similar ionic radii have become a new mechanism for researchers to regulate the emission wavelength of quantum dots. However, there are few studies on the performance of codoped quantum dots with ion at present. By adding a saturated solution of RbCl into an organic solution of CsPbBr 3 , quantum dots doped with Rb + and Cl − were prepared. The prepared quantum dots realized adjustable emission spectrum (457‐510 nm), stable lattice structure, and good stability under ultraviolet light irradiation. Therefore, double ion doping is a new method to prepare short‐wavelength of quantum dots.
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