CuSCN Modified Back Contacts for High Performance CZTSSe Solar Cells

نویسندگان

چکیده

Optimization of the back contact interface is crucial for improving performance Cu2ZnSnS4 (CZTS) thin film solar cells. In this paper, self-depleted CuSCN deployed as an intermediate layer at Mo/CZTS to improve quality contact. This layer, obtained via aqueous solution processing, reduces thickness Mo(S,Se)2 and eliminates multi-layer crystallization absorber by suppressing undesirable reaction between Mo Se during selenization process. By regulating selenium infiltration into CZTS precursor films process, highly crystalline, single-layer Cu2ZnSn(S,Se)4 (CZTSSe) layers are realized. The CZTSSe exhibits reduced carrier recombination, enhanced density increased work function. improved enables 11.1% power-conversion-efficiency be achieved.

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ژورنال

عنوان ژورنال: Advanced Functional Materials

سال: 2023

ISSN: ['1616-301X', '1616-3028']

DOI: https://doi.org/10.1002/adfm.202211421