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Issue 43, 2020
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Dependence of phase transitions on halide ratio in inorganic CsPb(BrxI1−x)3 perovskite thin films obtained from high-throughput experimentation

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Abstract

In this communication, we present the phase diagram of CsPb(BrxI1−x)3 (0 ≤ x ≤ 1, 300–585 K) obtained by high-throughput in situ GIWAXS measurements of a combinatorial thin film library. We find that all compositions convert to the cubic perovskite phase at high temperature and that the presence of bromide in the films stabilizes the metastable perovskite phases upon cool down. In accordance with recent predictions from DFT-calculations, the transition temperatures monotonically decrease with increasing bromide content.

Graphical abstract: Dependence of phase transitions on halide ratio in inorganic CsPb(BrxI1−x)3 perovskite thin films obtained from high-throughput experimentation

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Article information


Submitted
17 Aug 2020
Accepted
20 Oct 2020
First published
22 Oct 2020

This article is Open Access

J. Mater. Chem. A, 2020,8, 22626-22631
Article type
Communication

Dependence of phase transitions on halide ratio in inorganic CsPb(BrxI1−x)3 perovskite thin films obtained from high-throughput experimentation

H. Näsström, P. Becker, J. A. Márquez, O. Shargaieva, R. Mainz, E. Unger and T. Unold, J. Mater. Chem. A, 2020, 8, 22626
DOI: 10.1039/D0TA08067E

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