光致发光
材料科学
产量(工程)
发光
兴奋剂
分析化学(期刊)
纳米晶
离子
荧光粉
激子
纳米技术
掺杂剂
结晶学
化学工程
无机化学
冶金
光电子学
化学
工程类
作者
Jinjin Ma,John A. McLeod,Lo-Yueh Chang,Chih‐Wen Pao,Bi‐Hsuan Lin,Xiaoyun Li,Zhiqiang Wang,Jiatang Chen,Tsun‐Kong Sham,Lijia Liu
标识
DOI:10.1016/j.materresbull.2020.110907
摘要
CsPbCl3 perovskite nanocrystals are doped with heterovalent Pr3+ using hot-injection method. These Pr3+-doped CsPbCl3 nanocrystals exhibit a dramatically improved absolute photoluminescence quantum yield (PLQY) compared to the undoped CsPbCl3, reaching 78.9 % PLQY at 9 % Pr-substitution. The crystal structure modification upon Pr3+ doping and luminescence mechanism are investigated using conventional optical spectroscopy and synchrotron X-ray spectroscopy (i.e., X-ray absorption fine structure and X-ray excited optical luminescence). Both the Pr3+ and Cl− are found contributing to the luminescence enhancement, and their individual roles in luminescence enhancement are analyzed.
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