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Cu2ZnSnS4 thin-film solar cell absorbers illuminated by soft x-rays

  • In view of the complexity of thin-film solar cells, which are comprised of a multitude of layers, interfaces, surfaces, elements, impurities, etc., it is crucial to characterize and understand the chemical and electronic structure of these components. Because of the high complexity of the Cu2ZnSn(S,Se)4 compound semiconductor absorber material alone, this is particularly true for kesterite-based devices. Hence, this paper reviews our recent progress in the characterization of Cu2ZnSnS4 (CZTS) thin films. It is demonstrated that a combination of different soft x-ray spectroscopies is an extraordinarily powerful method for illuminating the chemical and electronic material characteristics from many different perspectives, ultimately resulting in a comprehensive picture of these properties. The focus of the article will be on secondary impurity phases, electronic structure, native oxidation, and the CZTS surface composition.

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Author: Marcus Bär, Björn-Arvid Schubert, Björn Marsen, Regan G. Wilks, M. Blum, S. Krause, Sujitra Pookpanratana, Y. Zhang, Thomas Unold, W. Yang, Lothar Weinhardt, Clemens Heske, Hans-Werner Schock
DOI:https://doi.org/10.1557/jmr.2012.59
ISSN:2044-5326
Title of the source (English):Journal of Materials Research
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2012
Volume/Year:27
Issue number:8
First Page:1097
Last Page:1104
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / JP Photovoltaik
Institution name at the time of publication:Fakultät für Mathematik, Naturwissenschaften und Informatik (eBTU) / JP Photovoltaik
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