Colloidal Synthesis and Optical Properties of Cs2CuCl4 Nanocrystals

被引：4
|
作者：
Gu, Wanying [1 ]
Zeng, Yicheng [1 ]
Deng, Yuan [1 ]
Huang, Pan [1 ]
Jin, Geyu [1 ]
Liu, Fangze [2 ]
Wei, Jing [1 ]
Li, Hongbo [1 ]
机构：
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Adv Res Inst Multidisciplinary Sci, Beijing 100081, Peoples R China
来源：
CRYSTALS | 2023年 / 13卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Cs2CuCl4; nanocrystals; Ag passivation; photoluminescence quantum yield; stability; HALIDE PEROVSKITE NANOCRYSTALS; ROOM-TEMPERATURE SYNTHESIS; ANION-EXCHANGE; QUANTUM DOTS; SUBSTITUTION; PASSIVATION; CSPBX3; BR; CL;
D O I：
10.3390/cryst13060864
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Lead-free copper halide perovskite nanocrystals (NCs) are emerging materials with excellent photoelectric properties. Herein, we present a colloidal synthesis route for orthorhombic Cs2CuCl4 NCs with a well-defined cubic shape and an average diameter of 24 & PLUSMN; 2.1 nm. The Cs2CuCl4 NCs exhibited bright, deep blue photoluminescence, which was attributed to the Cu(II) defects. In addition, passivating the Cs2CuCl4 NCs by Ag+ could effectively improve the photoluminescence quantum yield (PLQY) and environmental stability.
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收藏
页数：11
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