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Synthesis, crystal structure and photoresponse of tetragonal phase single crystal CH3NH3PbCl3

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Abstract

The performance of lead halogen perovskite is often closely related to its crystal structure. However, the chemical and optoelectronic properties of tetragonal phase single crystal MAPbCl3 (SC T-MAPbCl3) are rarely reported. In this study, we synthesized SC T-MAPbCl3 with the P4/mcc (124) space group by a modified inverse temperature crystallization (M-ITC) method. The twist angle of the Cl anion on the equatorial plane of the PbCl64− octahedron around the c-axis is 8.4°. The resistance (62 MΩ) of SC T-MAPbCl3 obviously decreased to 3 MΩ under 395 and 404 nm ultraviolet light. The photodetector based on SC T-MAPbCl3 under 3 V bias voltage exhibits high sensitivity (2.60 μA cm−2 under 1 W m−2 light intensity). The high selectivity of the device is in the ultraviolet region, rather than the visible region.

Graphical abstract: Synthesis, crystal structure and photoresponse of tetragonal phase single crystal CH3NH3PbCl3

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Article information


Submitted
15 Apr 2020
Accepted
28 Apr 2020
First published
28 Apr 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Synthesis, crystal structure and photoresponse of tetragonal phase single crystal CH3NH3PbCl3

Y. Chen, X. Hou, S. Tao, X. Fu, H. Zhou, J. Yin, M. Wu and X. Zhang, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC02738C

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