Chemical structure of the (Zn{sub 1-x},Mg{sub x})O/CuIn(S,Se){sub 2} interface in thin film solar cells
- Experimentelle Physik II, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg (Germany)
- Solar Energy Research, Helmholtz Zentrum Berlin fuer Materialien und Energie, Lise-Meitner Campus, Glienicker Str. 100, D-14109 Berlin (Germany)
- AVANCIS GmbH and Co. KG, Otto-Hahn-Ring 6, 81739 Muenchen (Germany)
The formation of the interface between a magnetron sputtered (Zn{sub 1-x},Mg{sub x})O buffer layer and a CuIn(S,Se){sub 2} absorber in thin film solar cells has been investigated by x-ray photoelectron spectroscopy and x-ray induced Auger electron spectroscopy. Detailed analysis of the spectra shows the incorporation of Zn into the absorber surface in the initial stage of the deposition process forming ZnS and/or ZnSe bonds. As a result we find the buffer layer to be Zn-depleted near the interface.
- OSTI ID:
- 21294326
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 95; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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