High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites
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. Thi...
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| Veröffentlicht in: | Advanced materials (Weinheim) 2014-03, Vol.26 (10), p.1584-1589 |
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| creator | Wehrenfennig, Christian Eperon, Giles E. Johnston, Michael B. Snaith, Henry J. Herz, Laura M. |
| description | 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. |
| doi_str_mv | 10.1002/adma.201305172 |
| format | Article |
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| ispartof | Advanced materials (Weinheim), 2014-03, Vol.26 (10), p.1584-1589 |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | CH3NH3PbI3 Charge Communications Constants Crystals Current carriers Diffusion length Heterojunctions Materials science Micrometers Perovskites Photovoltaic cells photovoltaics recombination Solar cells terahertz |
| title | High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites |
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