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Issue 37, 2015
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A facile solvothermal growth of single crystal mixed halide perovskite CH3NH3Pb(Br1−xClx)3

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Abstract

We demonstrate a facile synthetic approach for preparing mixed halide perovskite (CH3NH3)Pb(Br1−xClx)3 single crystals by the solvothermal growth of stoichiometric PbBr2 and [(1 − y)CH3NH3Br + yCH3NH3Cl] DMF precursor solutions. The band gap of (CH3NH3)Pb(Br1−xClx)3 single crystals increased and the unit cell dimensions decreased with an increase in Cl content x, consistent with previous theoretical predictions. Interestingly, the Cl/Br ratio in the (CH3NH3)Pb(Br1−xClx)3 single crystals is larger than that of the precursor solution, suggesting an unusual crystal growth mechanism.

Graphical abstract: A facile solvothermal growth of single crystal mixed halide perovskite CH3NH3Pb(Br1−xClx)3

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Article information


Submitted
04 Mar 2015
Accepted
29 Mar 2015
First published
31 Mar 2015

Chem. Commun., 2015,51, 7820-7823
Article type
Communication

A facile solvothermal growth of single crystal mixed halide perovskite CH3NH3Pb(Br1−xClx)3

T. Zhang, M. Yang, E. E. Benson, Z. Li, J. van de Lagemaat, J. M. Luther, Y. Yan, K. Zhu and Y. Zhao, Chem. Commun., 2015, 51, 7820
DOI: 10.1039/C5CC01835H

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