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Issue 7, 2014
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Charge-carrier dynamics in vapour-deposited films of the organolead halide perovskite CH3NH3PbI3−xClx

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Abstract

We determine high charge-carrier mobilities ≥ 33 cm2 V−1 s−1 and bi-molecular recombination rates about five orders of magnitude below the prediction of Langevin's model for vapour-deposited CH3NH3PbI3−xClx using ultrafast THz spectroscopy. At charge-carrier densities below ∼1017 cm−3 intrinsic diffusion lengths are shown to approach 3 microns, limited by slow mono-molecular decay processes.

Graphical abstract: Charge-carrier dynamics in vapour-deposited films of the organolead halide perovskite CH3NH3PbI3−xClx

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Publication details

The article was received on 29 Mar 2014, accepted on 27 May 2014 and first published on 27 May 2014


Article type: Communication
DOI: 10.1039/C4EE01358A
Author version available: Download Author version (PDF)
Citation: Energy Environ. Sci., 2014,7, 2269-2275
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    Charge-carrier dynamics in vapour-deposited films of the organolead halide perovskite CH3NH3PbI3−xClx

    C. Wehrenfennig, M. Liu, H. J. Snaith, M. B. Johnston and L. M. Herz, Energy Environ. Sci., 2014, 7, 2269
    DOI: 10.1039/C4EE01358A

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