title: Optical bleaching of perovskite (CH3NH3)PbI3 through room-temperature phase transformation induced by ammonia.
abstract: Ammonia induces a phase transformation of perovskite (CH3NH3)PbI3, leading to a rapid (<1 s) change in its color from brown to colorless (400-800 nm). This color change is reversed within seconds upon removing the NH3 source.
authors.affiliation: Chemical and Materials Science Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, USA. Kai.Zhu@nrel.gov.
authors.forename: Yixin
authors.initials: Y
authors.lastname: Zhao
authors.forename: Kai
authors.initials: K
authors.lastname: Zhu