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Lateral inhomogeneity of the Mg/(Zn+Mg) composition at the (Zn,Mg)O/CuIn(S,Se)2 thin-film solar cell interface revealed by photoemission electron microscopy

  • Spatial variations in the chemical composition of the (Zn,Mg)O/CuIn(S,Se)2 thin-film solar cell interface were studied by photoemission electron microscopy (PEEM). Energy filtered PEEM images indicate significant differences in the magnesium and zinc distribution. Local photoemission measurements reveal a relative difference in the derived Mg/(ZnþMg) composition of the (Zn,Mg)O material of up to (11.460.7)%, which can be expected to induce band gap fluctuations of (60630) meV. Furthermore, local areas with significant accumulations of sodium could be observed.

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Author: Marcus Bär, J.-P. Theisen, Regan G. Wilks, F. Erfurth, Roberto Felix Duarte, Dominic Gerlach, S. Haas, L. Tati-Bismaths, F. Reinert, F. Kronast, T. P. Niesen, J. Palm, S. Visbeck, Lothar Weinhardt
DOI:https://doi.org/10.1063/1.4804413
ISSN:1520-8850
Title of the source (English):Journal of Applied Physics
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2013
Volume/Year:113
Issue number:19
First Page:193709
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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