Why Lead Methylammonium Tri-Iodide Perovskite-Based Solar Cells Require a Mesoporous Electron Transporting Scaffold (but Not Necessarily a Hole Conductor). Edri, E., Kirmayer, S., Henning, A., Mukhopadhyay, S., Gartsman, K., Rosenwaks, Y., Hodes, G., & Cahen, D. Nano Letters, 14(2):1000-1004, 2, 2014.
Why Lead Methylammonium Tri-Iodide Perovskite-Based Solar Cells Require a Mesoporous Electron Transporting Scaffold (but Not Necessarily a Hole Conductor) [link]Website  abstract   bibtex   
CH3NH3PbI3-based solar cells were characterized with electron beam-induced current (EBIC) and compared to CH 3NH3PbI3-xClx ones. A spatial map of charge separation efficiency in working cells shows p-i-n structures for both thin film cells. Effective diffusion lengths, LD, (from EBIC profile) show that holes are extracted significantly more efficiently than electrons in CH3NH3PbI3, explaining why CH 3NH3PbI3-based cells require mesoporous electron conductors, while CH3NH3PbI3-xCl x ones, where LD values are comparable for both charge types, do not. © 2014 American Chemical Society.
@article{
 title = {Why Lead Methylammonium Tri-Iodide Perovskite-Based Solar Cells Require a Mesoporous Electron Transporting Scaffold (but Not Necessarily a Hole Conductor)},
 type = {article},
 year = {2014},
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 keywords = {Perovskite solar cell,electron beam induced current,organic-inorganic lead halide,photovoltaic,scanning kelvin probe force microscopy},
 pages = {1000-1004},
 volume = {14},
 websites = {http://pubs.acs.org/doi/10.1021/nl404454h},
 month = {2},
 day = {12},
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 abstract = {CH3NH3PbI3-based solar cells were characterized with electron beam-induced current (EBIC) and compared to CH 3NH3PbI3-xClx ones. A spatial map of charge separation efficiency in working cells shows p-i-n structures for both thin film cells. Effective diffusion lengths, LD, (from EBIC profile) show that holes are extracted significantly more efficiently than electrons in CH3NH3PbI3, explaining why CH 3NH3PbI3-based cells require mesoporous electron conductors, while CH3NH3PbI3-xCl x ones, where LD values are comparable for both charge types, do not. © 2014 American Chemical Society.},
 bibtype = {article},
 author = {Edri, Eran and Kirmayer, Saar and Henning, Alex and Mukhopadhyay, Sabyasachi and Gartsman, Konstantin and Rosenwaks, Yossi and Hodes, Gary and Cahen, David},
 journal = {Nano Letters},
 number = {2}
}

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