卤化物
钙钛矿(结构)
化学
纳米线
光致发光
正交晶系
铯
相(物质)
纳米技术
纳米尺度
光电子学
化学工程
无机化学
晶体结构
结晶学
材料科学
有机化学
工程类
作者
Dandan Zhang,Samuel W. Eaton,Yi Yu,Letian Dou,Peidong Yang
摘要
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-inorganic 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.
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