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

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 photolumine...

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Bibliographic Details
Published inMaterials research letters Vol. 7; no. 5; pp. 203 - 209
Main Authors Xu, Gongjie, Li, Ying, Yan, Jiyu, Lv, Xudong, Liu, Yi, Cai, Bin
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 04.05.2019
Subjects
laser
nanowire
Perovskite
self-assembly
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Summary: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 420–560 nm, with typical thresholds of 18.8 μJ cm−2 for CsPbBr3 NWs and 8.87 μJ cm−2 for CsPbBrxCl3-x microplates. The NWs exhibited robust stability under extended laser pumping in ambient atmosphere.
ISSN:2166-3831
2166-3831
DOI:10.1080/21663831.2019.1576797