Ontology highlight
ABSTRACT:
SUBMITTER: Galvani B
PROVIDER: S-EPMC6921607 | biostudies-literature | 2019 Dec
REPOSITORIES: biostudies-literature
ACS omega 20191205 25
We numerically investigate the impact of electron-phonon scattering on the optical properties of a perovskite material (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>). Using nonequilibrium Green function formalism, we calculate the local density of states for several values of the electron-phonon scattering strength. We report an Urbach-like penetration of the density of states in the band gap due to scattering. A physical analytical model allows us to attribute this behavior to a multiphonon proc ...[more]