A multiple-selenization process for enhanced reproducibility of Cu2ZnSn(S,Se)4 solar cells
A multiple-selenization process for wet-chemically fabricated kesterite-type Cu2ZnSn(S,Se)4 solar cells is reported that significantly improves the overall sample quality of the absorber layer and especially the reproducibility of device characteristics. Conversion efficiencies of up to 7.2% are obt...
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Veröffentlicht in: | Applied physics letters 2016-12, Vol.109 (23) |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | A multiple-selenization process for wet-chemically fabricated kesterite-type Cu2ZnSn(S,Se)4 solar cells is reported that significantly improves the overall sample quality of the absorber layer and especially the reproducibility of device characteristics. Conversion efficiencies of up to 7.2% are obtained. With this method, the absorber forms a very compact, hole- and crack-free layer and avoids the formation of multilayer or trilayer structures. Mainly, the series resistance and therefore the short-circuit current can be stabilized, which leads to lower fluctuation of the energy conversion efficiency of the solar cells on the same sample. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4971362 |