离子掺杂调控双钙钛矿量子点发光性能的研究进展  

Research Progress on Luminescence Performance of Double Perovskite Quantum Dots Regulated by Ion Doping

作　　者：张丽媛[1] 王查斯娜 胡井香 詹传郎 ZHANG Liyuan;WANG Chasina;HU Jingxiang;ZHAN Chuanlang(Key Laboratory of Advanced Materials Chemistry and Devices(AMCDLab)of the Department of Education of Inner Mongolia Autonomous Region,College of Chemistry and Environmental Science,Inner Mongolia Normal University,Huhehaote 010022,China)

机构地区：[1]内蒙古师范大学化学与环境科学学院,先进材料化学与器件内蒙古自治区高等学校重点实验室,呼和浩特010022

出　　处：《高等学校化学学报》2024年第9期1-15,共15页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:U23A20593,22171151);内蒙古自然科学基金(批准号:2021MS02004);内蒙古师范大学科研启动费和内蒙古师范大学研究生创新经费资助

摘　　要：铅基卤化物钙钛矿发光材料因具有灵活的晶体结构、带隙可调性、缺陷容忍性和高荧光量子产率等优异性能而备受关注.但金属铅的毒性和钙钛矿的稳定性一直是阻碍其商业应用急需解决的问题.因此,需要探索更绿色环保的非铅金属卤化物类钙钛矿发光材料.近年来,通过替换铅离子发展起来的非铅双钙钛矿结构成功实现了低毒性和高稳定性,但由于其是间接带隙或因为宇称禁阻的直接带隙而造成光致发光效率极低.为了解决此问题,研究人员开发了离子掺杂策略,实现了光致发光效率的提升.本文综合评述了非铅双钙钛矿材料的晶体结构和发光性能,归纳了主族金属、稀土金属和过渡金属掺杂对非铅双钙钛矿发光性能的影响及其发光机制.最后,对离子掺杂策略的应用和进一步提升非铅双钙钛矿发光材料的性能进行了总结和展望.Lead based halide perovskite luminescent materials have attracted much attention due to their excellent properties such as flexible crystal structure,tunable bandgap,defect tolerance,and high fluorescence quantum yield.However,the toxicity of lead metal and the stability of perovskite have always been issues that hinder its commercial application and urgently need to be addressed.Therefore,exploring greener and more environmentally friendly non lead metal halide perovskite luminescent materials is becoming an increasing research topic.In recent years,non lead double perovskite structures,in which lead ions are replaced with monovalent and trivalent metal ions,have successfully achieved low toxicity and high stability,but their photoluminescence efficiencies are extremely low due to the indirect bandgap or parity-prohibited direct bandgap.To address this issue,scientists have explored ion doping strategies and successfully achieved a significant improvement in photoluminescence efficiency.In this article,the crystal structure and luminescent properties of non lead double perovskite materials are summarized.Second,the effects of doping with main group metals,rare earth metals,and transition metals on the luminescence performance and luminescent mechanism are summarized.Finally,the application of ion doping strategies and improving the performance of non lead perovskite luminescent materials are summarized and discussed.

关 键 词：双钙钛矿量子点 离子掺杂 光致发光量子效率 自陷激子态发光 

分 类 号：O611[理学—无机化学]