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J Am Chem Soc. 2015 Jul 29;137(29):9230-3. doi: 10.1021/jacs.5b05404. Epub 2015 Jul 16.

Solution-Phase Synthesis of Cesium Lead Halide Perovskite Nanowires.

Author information

1
§Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.
2
∥Kavli Energy NanoSciences Institute, Berkeley, California 94720, United States.

Abstract

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.

PMID:
26181343
DOI:
10.1021/jacs.5b05404

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