文献类型：期刊文献

中文题名：A one-pot method for controlled synthesis and selective etching of organic-inorganic hybrid perovskite crystals

英文题名：A one-pot method for controlled synthesis and selective etching of organic-inorganic hybrid perovskite crystals

作者：Yu Hou[1];Mengjiong Chen[1];Hongwei Qiao[1];Huagui Yang[1]

机构：[1]Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology

年份：2019

卷号：28

期号：6

起止页码：149

中文期刊名：Journal of Energy Chemistry

外文期刊名：能源化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2019_2020】；

基金：financially supported by the National Natural Science Foundation of China (51602103);the National Natural Science Funds for Distinguished Young Scholar (51725201);Young Elite Scientists Sponsorship Program by CAST (2017QNRC001);Shanghai Pujiang Program (18PJD009);“Chen Guang” Project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (15CG26);Fundamental Research Funds for the Central Universities (222201718002);the Major Research plan of National Natural Science Foundation of China (91534202)

语种：英文

中文关键词：Crystal;growth;Perovskite;Solvothermal;Etching;effect

外文关键词：Crystal growth;Perovskite;Solvothermal;Etching effect

摘要：Organometal halide perovskites have recently emerged with a huge potential for photovoltaic applications. Moreover, preparation of high-quality perovskite crystals with controlled morphology is of great significance for the fundamental studies such as optical and electrical properties, as well as the applications. Here, we report a one-pot solvothermal process to synthesize sheet-shaped CH3NH3PbBr3 single crystals with the lateral size of 100 μm and the thickness of 3–8 μm. Furthermore, a controlled etching behavior on the crystalline surface was demonstrated, which could be the irregular collapse of the crystalline surface caused by the local accumulation of methylammonium cations. Using this technique,CH3NH3PbBr3 single crystal sheets could be used in the various optoelectronic devices, such as nanolaser,optical sensors, photodetectors and field effect transistors.
Organometal halide perovskites have recently emerged with a huge potential for photovoltaic applications. Moreover, preparation of high-quality perovskite crystals with controlled morphology is of great significance for the fundamental studies such as optical and electrical properties, as well as the applications. Here, we report a one-pot solvothermal process to synthesize sheet-shaped CH3NH3PbBr3 single crystals with the lateral size of 100 μm and the thickness of 3–8 μm. Furthermore, a controlled etching behavior on the crystalline surface was demonstrated, which could be the irregular collapse of the crystalline surface caused by the local accumulation of methylammonium cations. Using this technique,CH3NH3PbBr3 single crystal sheets could be used in the various optoelectronic devices, such as nanolaser,optical sensors, photodetectors and field effect transistors.