Mild and Rapid Solution Synthesis of Mn2+-doped Cs3Cu2I5 Microcrystals

被引：0
|
作者：
Yan X. [1 ,2 ]
Hu Y. [1 ]
Wan N. [2 ]
Pang Q. [1 ]
Chen Y. [2 ]
机构：
[1] School of Chemistry and Chemical Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning
[2] School of Chemistry and Chemical Engineering, Institute of Clean Energy and Materials, Guangzhou University, Guangzhou
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2024年 / 45卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Cs[!sub]3[!/sub]Cu[!sub]2[!/sub]I[!sub]5[!/sub; Mn[!sup]2+[!/sup] doping; slow-release growth-doping;
D O I：
10.37188/CJL.20230316
中图分类号：
学科分类号：
摘要：
Doping Mn2+ into the copper-based halide Cs3Cu2I5 is an important approach to broaden the luminescence performance. However,most of the reported doping methods require high temperature,inert atmosphere,long reaction time,and specialized equipment. In this work,by directly adding CsI powders into a hydroiodic acid solution of CuI and MnCl2,Mn2+-doped Cs3Cu2I5 microcrystals were rapidly synthesized at a relatively low temperature (60 °C)under ambient air conditions within 3 minutes. Through a series of control experiments,we propose a“slow-release growth-doping”mechanism controlled by the solubility of the reactants. It is confirmed that the slow dissolution rate of CsI powders in a concentrated hydroiodic acid can reduce the growth rate of Cs3Cu2I5 crystals,providing favorable kinetic conditions for controllable Mn2+ doping. This work provides a new approach for the study of doping luminescence and doping kinetics in all-inorganic metal halide systems. © 2024 Editorial Office of Chinese Optics. All rights reserved.
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页码：375 / 382
页数：7
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