4.4 Article Proceedings Paper

Progress towards marketable earth-abundant chalcogenide solar cells

期刊

THIN SOLID FILMS
卷 519, 期 21, 页码 7378-7381

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ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2010.12.225

关键词

CZTS; CuZnSnS4; Kesterite; Solar cell; Photovoltaic; Thin-film; Low-cost

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Kesterite-related photovoltaic materials are considered a promising alternative to CdTe and Cu(In,Ga)(S,Se)(2) absorbers, primarily because they are not reliant on scarce elements such as indium and tellurium or the heavy metal cadmium. Recently, we reported a performance breakthrough for this materials class, reaching by a simple hydrazine-based deposition technique 9.6% power conversion efficiency for Cu2ZnSn(S,Se)(4) devices (40% improvement over vacuum-based methods). Here, more detailed characterization for a hydrazine-prepared device shows the potential of this technology for further efficiency improvement. We also present initial device results for Cu2ZnSn(S,Se)(4) films deposited using a mixed water-hydrazine-based solvent, yielding devices with 8.1% efficiency. (C) 2011 Elsevier B.V. All rights reserved.

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