多孔框架结构封装提高CsPbX_(3)(X=Cl,Br,I)纳米晶稳定性的研究进展  

Research Progress on Stability of CsPbX_(3)(X=Cl,Br,I)Nanocrystals Enhanced by Encapsulation in Porous Frame Structure

作　　者：朱梦梦 胡松[2] 李会利[1] ZHU Mengmeng;HU Song;LI Huili(Engineering Research Center for Nanophotonics and Advanced Instrument,Ministry of Education,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China;Key Laboratory of Transparent Opto-Functional Inorganic Materials,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China)

机构地区：[1]华东师范大学物理与电子科学学院,纳光电集成与先进装备教育部工程研究中心,上海200241 [2]中国科学院上海硅酸盐研究所中国科学院透明光功能无机材料重点实验室,上海201899

出　　处：《聊城大学学报（自然科学版）》2023年第1期52-65,共14页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目(51902332,12274136);上海市自然科学基金项目(19ZR1415400)资助。

摘　　要：全无机钙钛矿CsPbX_(3)(X=Cl,Br,I)纳米晶作为新一代光电半导体材料,具有荧光量子产率高、发射谱线窄、色纯度和缺陷容忍度高以及带宽和荧光发射连续可调等一系列优势,已被广泛应用于光电子器件领域。但是当钙钛矿材料暴露于光照、热和极性溶剂环境中时,极易发生分解、结构破坏和聚集,导致荧光性能迅速下降,严重阻碍了其商业化应用进程。基于此,大量科研工作者致力于提高全无机钙钛矿纳米晶稳定性的相关研究,并取得了颇有成效的成果。主要从钙钛矿纳米晶的结构入手,系统分析了其不稳定的根本原因,在此基础上,总结了多孔框架结构封装策略提高CsPbX_(3)纳米晶稳定性的最新研究进展,并对其未来的重点发展方向进行了展望。As a new generation of photoelectric semiconductor materials,all-inorganic perovskite CsPbX_(3)(X=Cl,Br,I)nanocrystals have exhibited many outstanding optoelectronic properties,including high photoluminescence quantum yields,narrow emission full width at half maximum,high color purity,high defect tolerance,tunable band gap and fluorescence emission.As a result,they have been widely used in the field of optoelectronic devices.However,when perovskite materials are exposed to environment containing light,heating and polar solvent,they can easily be decomposed,aggregate and finally,fluorescence properties dramatically quench,which seriously hinders their commercial application process.Therefore,many researchers have done lots of works on improving the stability of perovskite nanocrystals,and have obtained someoutstanding results.In this review,we started on the structure of perovskite nanocrystals,systematically analyzed the basic factors causing instability of perovskite nanocrystals.Based on these,the latest research progress to enhance stability of CsPbX_(3)nanocrystals by porous frame structure packaging strategy was summarized.Finally,the future key development direction in this field was simply discussed.

关 键 词：全无机钙钛矿 CsPbX_(3) 多孔框架结构 稳定性 复合材料 

分 类 号：O614[理学—无机化学]