Pressure-induced transformation of CH₃NH₃PbI₃: the role of the noble-gas pressure transmitting media.

ABSTRACT: The photovoltaic perovskite, methylammonium lead triiodide [CH₃NH₃PbI₃ (MAPbI₃)], is one of the most efficient materials for solar energy conversion. Various kinds of chemical and physical modifications have been applied to MAPbI₃ towards better understanding of the relation between composition, structure, electronic properties and energy conversion efficiency of this material. Pressure is a particularly useful tool, as it can substantially reduce the interatomic spacing in this relatively soft material and cause significant modifications to the electronic structure. Application of high pressure induces changes in the crystal symmetry up to a threshold level above which it leads to amorphization. Here, a detailed structural study of MA

SUBMITTER: Arakcheeva A 

PROVIDER: S-EPMC6549221 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature