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Optical bleaching of perovskite (CH3NH3)PbI3 through room-temperature phase transformation induced by ammonia
1Chemical and Materials Science Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, USA. Kai.Zhu@nrel.gov.
Chemical Communications (Cambridge, England)
|January 7, 2014
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.
