In-plane self-assembly and lasing performance of cesium lead halide perovskite nanowires

被引：14
作者：
Xu, Gongjie [1 ]
Li, Ying [1 ]
Jiyu Yan [1 ]
Lv, Xudong [1 ]
Liu, Yi [1 ]
Cai, Bin [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, 516 Jungong Rd, Shanghai, Peoples R China
来源：
MATERIALS RESEARCH LETTERS | 2019年 / 7卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Perovskite; laser; nanowire; self-assembly; SOLAR-CELLS; ANION-EXCHANGE; QUANTUM DOTS; CSPBX3; BR; CL; GROWTH; LASERS; NANOCRYSTALS;
D O I：
10.1080/21663831.2019.1576797
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Inorganic cesium lead halide perovskite nanowires (NWs) were synthesised by an in-plane self-assembly method. With the assistance of saturated solvent vapour, perovskite microparticles self-assembled into NWs. By stoichiometric adjustment of the halogen anion components in the NWs, their photoluminescence could be tuned to span the entire visible range. A detailed investigation of the lasing properties of the in-situ perovskite NWs and microplates revealed a lasing range of 420-560nm, with typical thresholds of 18.8J cm(-2) for CsPbBr3 NWs and 8.87J cm(-2) for CsPbBrxCl3-x microplates. The NWs exhibited robust stability under extended laser pumping in ambient atmosphere. [GRAPHICS] . IMPACT STATEMENTAn in-plane self-assembly method was developed for high-quality CsPbX3 nanowires preparation, and the NWs possessed robust lasing performance in the range of 420-560nm.
引用
收藏
页码：203 / 209
页数：7
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