Cu 2 ZnSnSe 4 solar cell absorbers are synthesized by large‐area electrodeposition of metal stack precursors followed by selenization. A champion solar cell exhibits 8.2% power conversion efficiency, a new record for Cu 2 ZnSnSe 4 solar cells prepared from electrodeposited metallic precursors. Significant improvements of device performance are achieved by the application of two etching procedures and buffer layer optimization. These results validate electrodeposition as a credible alternative to vacuum processes (sputtering, co‐evaporation) for earth‐abundant thin‐film solar cell fabrication at low cost. Copyright © 2015 John Wiley & Sons, Ltd. Cu 2 ZnSnSe 4 photovoltaic devices were fabricated by large‐scale, high‐speed electrodeposition of thin‐film metal stacks followed by annealing. Removal of secondary phases by chemical etching and cadmium sulfide buffer layer optimization led to significant device performance improvement.


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    Title :

    8.2% pure selenide kesterite thin‐film solar cells from large‐area electrodeposited precursors



    Published in:

    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    53.36 Energiedirektumwandler, elektrische Energiespeicher