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Earth-Abundant Element Photovoltaics Directly from Soluble Precursors with High Yield Using a Non-Toxic Solvent

Authors

  • Wooseok Ki,

    1. Department of Chemical Engineering and the Molecular Engineering and Science Institute, University of Washington, Seattle, WA 98195, USA
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  • Hugh W. Hillhouse

    Corresponding author
    1. Department of Chemical Engineering and the Molecular Engineering and Science Institute, University of Washington, Seattle, WA 98195, USA
    • Department of Chemical Engineering and the Molecular Engineering and Science Institute, University of Washington, Seattle, WA 98195, USA.
    Search for more papers by this author

Abstract

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A new chemical route to Cu2ZnSn(SxSe1-x)4 based thin film solar cells has been developed using spin coating of commercially available molecular precursors from an environmentally friendly non-toxic solvent. 4.1% efficiency solar cells were achieved after selenization of Cu2ZnSnS4. This technique could provide simple, facile, and reproducible fabrication for efficient and large area solar cells.

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