Long-lived polarization memory in the electronic states of lead-halide perovskites from local structural dynamics

Anharmonic ultrafast structural dynamics are expected in lead halide perovskites due to their soft nature. Here Rivett et al. show that these dynamics lead to picosecond-long polarization anisotropy of photo-carriers in several halide perovskites, orders of magnitude slower than in conventional semi...

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Autores principales: Jasmine P. H. Rivett, Liang Z. Tan, Michael B. Price, Sean A. Bourelle, Nathaniel J. L. K. Davis, James Xiao, Yatao Zou, Rox Middleton, Baoquan Sun, Andrew M. Rappe, Dan Credgington, Felix Deschler
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2018
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Acceso en línea:https://doaj.org/article/288a2808402a4166a2d6eb37f03e50dd
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Sumario:Anharmonic ultrafast structural dynamics are expected in lead halide perovskites due to their soft nature. Here Rivett et al. show that these dynamics lead to picosecond-long polarization anisotropy of photo-carriers in several halide perovskites, orders of magnitude slower than in conventional semiconductors.