CH3NH3PbBr3钙钛矿纳米晶的室温合成及发光性能研究  

Room temperature synthesis of CH3NH3PbBr3 perovskite nanocrystals and photoluminescence properties

作　　者：杨丽丽[1] 马小钧 莫桂湘 王策 杨男男 YANG Li-li;MA Xiao-jun;MO Gui-xiang;WANG Ce;YANG Nan-nan(College of Physics,Jilin Normal University,Siping 136000,China;College of Mechanical Engineering,Jilin Engineering Normal University,Changchun 130052,China)

机构地区：[1]吉林师范大学物理学院,吉林四平136000 [2]吉林工程技术师范学院机械工程学院,吉林长春130052

出　　处：《吉林师范大学学报（自然科学版）》2021年第1期1-6,共6页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家重点研发计划项目(2017YFF0108600,2017YFF0108607);吉林省教育厅“十三五”科学技术项目(JJKH20200179KJ)。

摘　　要：有机-无机杂化钙钛矿材料因光吸收系数大、带隙直接且可调、载流子迁移率高、载流子扩散长度长等优势在光电器件领域显现巨大的应用前景.采用低温合成工艺,实现光学性能调控,对于扩展其应用具有重要研究价值.本文开发了一种室温下合成CH3NH3PbBr3纳米晶的简便方法,研究了反应时间对钙钛矿纳米晶的晶体结构和发光性能的影响.结果表明,当反应时间为24 h时,CH3NH3PbBr3纳米晶的结晶质量好,发光性能最优.Organic-inorganic hybrid perovskite materials show great application prospects in the field of optoelectronic devices due to their large light absorption coefficient,direct and adjustable band gap,high carrier mobility and long carrier diffusion length.To develop a low-temperature synthesis technology to achieve tunable optical properties was very valuable for expanding their applications.In this work,a simple method for synthesizing CH3NH3PbBr3 nanocrystals at room temperature was developed.The effect of reaction time on the crystal structure and luminescence properties of perovskite nanocrystals was studied.The results showed that the crystal quality of CH3NH3PbBr3 nanocrystals was good and the luminescence performance was the best when the reaction time was 24 h.

关 键 词：有机-无机杂化钙钛矿 纳米晶 室温合成 发光性能 

分 类 号：O657.37[理学—分析化学]