Ultra-stable Eu^(3+)-doped CsPbCl_(2)Br_(1) perovskite quantum dots glass for optical temperature sensing  

作　　者：Yanxia Yu Guangzhan Shao Ling Ding Huiling Zhang Xiaojuan Liang Jianping Liu Weidong Xiang 

机构地区：[1]College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325035,China

出　　处：《Journal of Rare Earths》2021年第12期1497-1505,I0002,共10页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(51872207,51672192)。

摘　　要：In this work,Eu^(3+)-doped CsPbCl_(2)Br_(1) in borosilicate glass was successfully synthesized by the melt quenching annealing technique and crystallization method.This work reports a novel Eu^(3+)-doped CsPbCl_(2)Br_(1) perovskite quantum dots(QDs)glass with high sensitivity for optical temperature sensing.The relation of fluorescence intensity ratio(FIR)with the temperature was studied in the temperature range of 80-440 K.Notably,the maximum absolute temperature sensitivity(Sa)and relative temperature sensitivity(Sr)of Eu^(3+)-doped CsPbCl_(2)Br_(1) perovskite QDs glass can reach as high as 0.0315 K-1 and3.097%/K,respectively.Meanwhile,Eu^(3+)-doped CsPbCl_(2)Br_(1) QDs glass demonstrates good water resistance,excellent thermal and cold cycling stability performance,The Eu^(3+)-doped QDs glass materials can bring inspiration to the future exploration of rare earth ion-doped QDs glass material on the application of optical temperature sensing in the future.

关 键 词：Eu^(3+)-doped CsPbCl_(2)Br_(1)quantum dots GLASS Optical temperature sensing Stability Rare earths 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TQ171.7[自动化与计算机技术—控制科学与工程]