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    Morphological Control for High Performance, Solution-Processed Planar Heterojunction Perovskite Solar Cells

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    Type
    Article
    Authors
    Eperon, Giles E.
    Burlakov, Victor M.
    Docampo, Pablo
    Goriely, Alain cc
    Snaith, Henry J.
    KAUST Grant Number
    KUK-C1-013-04
    Date
    2013-09-09
    Online Publication Date
    2013-09-09
    Print Publication Date
    2014-01
    Permanent link to this record
    http://hdl.handle.net/10754/598888
    
    Metadata
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    Abstract
    Organometal trihalide perovskite based solar cells have exhibited the highest efficiencies to-date when incorporated into mesostructured composites. However, thin solid films of a perovskite absorber should be capable of operating at the highest efficiency in a simple planar heterojunction configuration. Here, it is shown that film morphology is a critical issue in planar heterojunction CH3NH3PbI3-xCl x solar cells. The morphology is carefully controlled by varying processing conditions, and it is demonstrated that the highest photocurrents are attainable only with the highest perovskite surface coverages. With optimized solution based film formation, power conversion efficiencies of up to 11.4% are achieved, the first report of efficiencies above 10% in fully thin-film solution processed perovskite solar cells with no mesoporous layer. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Citation
    Eperon GE, Burlakov VM, Docampo P, Goriely A, Snaith HJ (2013) Morphological Control for High Performance, Solution-Processed Planar Heterojunction Perovskite Solar Cells. Advanced Functional Materials 24: 151–157. Available: http://dx.doi.org/10.1002/adfm.201302090.
    Sponsors
    This work was supported by EPSRC and Oxford Photovoltaics Ltd. through a Nanotechnology KTN CASE award, the European Research Council (ERC) HYPER PROJECT no. 279881. This publication is based in part upon work supported by Award No. KUK-C1-013-04, made by King Abdullah University of Science and Technology (KAUST). A.G. is a Wolfson/Royal Society Merit Award Holder and acknowledges support from a Reintegration Grant under EC Framework VII. V.B. is an Oxford Martin School Fellow and this work was in part supported by the Oxford Martin School. The authors would like to thank Edward Crossland and James Ball for valuable discussions.
    Publisher
    Wiley
    Journal
    Advanced Functional Materials
    DOI
    10.1002/adfm.201302090
    ae974a485f413a2113503eed53cd6c53
    10.1002/adfm.201302090
    Scopus Count
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    Publications Acknowledging KAUST Support

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