High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites

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  • The copyright line for this article was changed on 23 Dec 2015 after original online publication.

Abstract

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Organolead trihalide perovskites are shown to exhibit the best of both worlds: charge-carrier mobilities around 10 cm2 V−1 s−1 and low bi-molecular charge-recombination constants. The ratio of the two is found to defy the Langevin limit of kinetic charge capture by over four orders of magnitude. This mechanism causes long (micrometer) charge-pair diffusion lengths crucial for flat-heterojunction photovoltaics.

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