Phase segregation in mixed-halide perovskites affects charge-carrier dynamics while preserving mobility

Phase segregation in mixed halide perovskite is known to alter the optoelectronic properties, but how it affects charge carriers is not clear. Here, the authors use THz spectroscopy to reveal that high carrier mobilities are well preserved, while recombination dynamics is affected by charge funnelli...

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Bibliographic Details
Main Authors: Silvia G. Motti, Jay B. Patel, Robert D. J. Oliver, Henry J. Snaith, Michael B. Johnston, Laura M. Herz
Format: article
Language:EN
Published: Nature Portfolio 2021
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Online Access:https://doaj.org/article/4eb0eb4c1be246debbba0a7df2eb2a87
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Summary:Phase segregation in mixed halide perovskite is known to alter the optoelectronic properties, but how it affects charge carriers is not clear. Here, the authors use THz spectroscopy to reveal that high carrier mobilities are well preserved, while recombination dynamics is affected by charge funnelling upon segregation.