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Environmental Effects on the Photophysics of Organic-Inorganic Halide Perovskites.


ABSTRACT: The photophysical properties of films of organic-inorganic lead halide perovskites under different ambient conditions are herein reported. We demonstrate that their luminescent properties are determined by the interplay between photoinduced activation and darkening processes, which strongly depend on the atmosphere surrounding the samples. We have isolated oxygen and moisture as the key elements in each process, activation and darkening, both of which involve the interaction with photogenerated carriers. These findings show that environmental factors play a key role in the performance of lead halide perovskites as efficient luminescent materials.

SUBMITTER: Galisteo-Lopez JF 

PROVIDER: S-EPMC4603615 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Environmental Effects on the Photophysics of Organic-Inorganic Halide Perovskites.

Galisteo-López Juan F JF   Anaya M M   Calvo M E ME   Míguez H H  

The journal of physical chemistry letters 20150601 12


The photophysical properties of films of organic-inorganic lead halide perovskites under different ambient conditions are herein reported. We demonstrate that their luminescent properties are determined by the interplay between photoinduced activation and darkening processes, which strongly depend on the atmosphere surrounding the samples. We have isolated oxygen and moisture as the key elements in each process, activation and darkening, both of which involve the interaction with photogenerated  ...[more]

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