Ontology highlight
ABSTRACT:
SUBMITTER: Grancini G
PROVIDER: S-EPMC5512535 | biostudies-literature | 2015 Dec
REPOSITORIES: biostudies-literature
Chemical science 20150917 12
Here we identify structural inhomogeneity on a micrometer scale across the surface of a CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite single crystal. At the crystal edge a local distortion of the crystal lattice is responsible for a widening of the optical bandgap and faster photo-carrier recombination. These effects are inherently present at the edge of the crystal, and further enhanced upon water intercalation, as a preliminary step in the hydration of the perovskite material. ...[more]