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Polaron protected long-lived hot carriers in mixed cation and anion perovskite nanocrystals

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Abstract

We demonstrate protection of hot-carriers at nanosecond timescales via polaron formation in mixed cation and anion perovskite nanocrystals using ultrafast spectroscopy. The effective carrier protection precedes perovskite photovoltaic devices with efficiencies exceeding Shockley-Quisser limit.

© 2020 The Author(s)

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