High charge-carrier mobilities and recombination lifetimes are revealed for CH₃NH₃PbI3−xClxfilms made by dual-source evaporation. Extracted diffusion lengths approach 3 microns, underlining the high suitability of the evaporated perovskite for planar-heterojunction solar cells.
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Wehrenfennig et al. (2014) studied this question.
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