Degradation mechanisms in mixed-cation and mixed-halide Cs<sub>x</sub>FA<sub>1−x</sub>Pb(Br<sub>y</sub>I<sub>1−y</sub>)<sub>3</sub> perovskite films under ambient conditions
Paulo E. Marchezi, Eralci Moreira Therézio, Rodrigo Szostak, Hugo Campos Loureiro, Karsten Bruening, Aryeh Gold‐Parker, Maurício A. Melo, Christopher J. Tassone, H. Tolentino, Michael F. Toney, Ana F. Nogueira
Abstract
With <italic>in situ</italic> ESEM and GIWAXS we saw that the perovskite degradation passes through hexagonal polytypes and is dependent on the composition.
Topics & Concepts
Perovskite (structure)HalideHexagonal crystal systemMineralogyCrystallographyMaterials scienceX-ray crystallographyChemistryInorganic chemistryDiffractionPhysicsOpticsPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyOrganic and Molecular Conductors Research