High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites
Christian Wehrenfennig, Giles E. Eperon, Michael B. Johnston, Henry James Snaith, Laura M. Herz
Advanced Materials · 2013 · 3,247 citationsOpen access
Abstract
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.
Cite this paper
Wehrenfennig, C., Eperon, G. E., Johnston, M. B., Snaith, H. J., & Herz, L. M. (2013). High charge carrier mobilities and lifetimes in organolead trihalide perovskites. Advanced Materials, 26(10), 1584–1589. https://doi.org/10.1002/adma.201305172
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