Issue 47, 2021

Thermodynamic stability screening of IR-photonic processed multication halide perovskite thin films

Abstract

We report a material screening study for phase transitions of multication hybrid halide perovskite films. Two hundred sixty-six films processed with flash infrared annealing were optically and structurally characterized. This data was compiled into a database to use as a reliable guide for fundamental studies of halide perovskites. We determine the optimum conditions for the formation of the mixed-cations halide perovskite active phase. We subjected the films to different stress conditions (light, temperature, humidity) resulting in five compositions that were thermodynamically stable. From these, the photoinduced phase instability process of the hybrid perovskite films was explored. These intrinsic stability tests showed that the correct multication combination plays a fundamental role in the crystal growth and thermodynamic stability of the films.

Graphical abstract: Thermodynamic stability screening of IR-photonic processed multication halide perovskite thin films

Supplementary files

Article information

Article type
Paper
Submitted
21 Jun 2021
Accepted
25 Oct 2021
First published
24 Nov 2021
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2021,9, 26885-26895

Thermodynamic stability screening of IR-photonic processed multication halide perovskite thin films

S. Sánchez, B. Carlsen, V. Škorjanc, N. Flores, P. Serafini, I. Mora-Seró, P. Schouwink, S. M. Zakeeruddin, M. Graetzel and A. Hagfeldt, J. Mater. Chem. A, 2021, 9, 26885 DOI: 10.1039/D1TA05248A

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