Solution-Phase Synthesis of Cesium Lead Halide Perovskite Nanowires

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• 作者：Dandan Zhang ; Samuel W. Eaton ; Yi Yu ; Letian Dou ; Peidong Yang
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：July 29, 2015
• 年：2015
• 卷：137
• 期：29
• 页码：9230-9233
• 全文大小：390K
• ISSN：1520-5126

文摘

Halide perovskites have attracted much attention over the past 5 years as a promising class of materials for optoelectronic applications. However, compared to hybrid organic鈥搃norganic perovskites, the study of their pure inorganic counterparts, like cesium lead halides (CsPbX₃), lags far behind. Here, a catalyst-free, solution-phase synthesis of CsPbX₃ nanowires (NWs) is reported. These NWs are single-crystalline, with uniform growth direction, and crystallize in the orthorhombic phase. Both CsPbBr₃ and CsPbI₃ are photoluminescence active, with composition-dependent temperature and self-trapping behavior. These NWs with a well-defined morphology could serve as an ideal platform for the investigation of fundamental properties and the development of future applications in nanoscale optoelectronic devices based on all-inorganic perovskites.