General Strategy for the Growth of CsPbX3 (X = Cl, Br, I) Perovskite Nanosheets from the Assembly of Nanorods

Shape control is critical and offers an efficient way to tune the properties of nanocrystals (NCs). Here we present the growth of two-dimensional (2-D) all-inorganic CsPbX3 (X = Cl, Br, I) perovskite NCs through the assembly of corresponding 1-D nanorods (NRs) under solvothermal conditions. Both 2-D...

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Bibliographic Details
Published in:Chemistry of materials 2018-06, Vol.30 (11), p.3854-3860
Main Authors: Li, Zhi-Jun, Hofman, Elan, Davis, Andrew Hunter, Maye, Mathew M, Zheng, Weiwei
Format: Article
Language:English
Online Access:Get full text
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Summary:Shape control is critical and offers an efficient way to tune the properties of nanocrystals (NCs). Here we present the growth of two-dimensional (2-D) all-inorganic CsPbX3 (X = Cl, Br, I) perovskite NCs through the assembly of corresponding 1-D nanorods (NRs) under solvothermal conditions. Both 2-D CsPbX3 perovskite nanoplatelets (NPLs) and nanosheets (NSs) with a wide lateral size range from ∼100 nm to ∼1 μm and thickness of a few unit cells can be obtained by the control of the solvothermal reaction time. The present work provides a general strategy for rational fabrication of 2-D CsPbX3 (X = Cl, Br, I) perovskite NCs without the assistance of anion exchange. The obtained fluorescent 2-D all-inorganic perovskite NCs have great potential in practical photovoltaic applications.
ISSN:0897-4756
1520-5002
DOI:10.1021/acs.chemmater.8b01283