Depth distribution of secondary phases in kesterite Cu2ZnSnS4 by angle-resolved X-ray absorption spectroscopy

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ID: 263612
2017
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Abstract
The depth distribution of secondary phases in the solar cell absorber material Cu2ZnSnS4 (CZTS) is quantitatively investigated using X-ray Absorption Near Edge Structure (XANES) analysis at the K-edge of sulfur at varying incidence angles. Varying information depths from several nanometers up to the full thickness is achieved. A quantitative profile of the phase distribution is obtained by a self-consistent fit of a multilayer model to the XANES spectra for different angles. Single step co-evaporated CZTS thin-films are found to exhibit zinc and copper sulfide secondary phases preferentially at the front or back interfaces of the film.
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Authors Just, J.;Lützenkirchen-Hecht, D.;Müller, O.;Frahm, R.;Unold, T.;
Journal apl materials
Year 2017
DOI
DOI not found
URL
http://dx.doi.org/10.1063/1.5000306
Keywords
chemistry Chemical technology Biotechnology Technology Science physics renewable energy sources clay industries. ceramics. glass

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