期刊
MATERIALS RESEARCH LETTERS
卷 7, 期 5, 页码 203-209出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/21663831.2019.1576797
关键词
Perovskite; laser; nanowire; self-assembly
资金
- National Natural Science Foundation of China [61377111, 61306118]
- National Program on Key Basic Research Project (973 Program) [2015CB352001]
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.
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