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Erscheinungsjahr
- 2011 (1)
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Sprache
- Englisch (1)
Schlagworte
- thin-film solar cells (1) (entfernen)
Institut
- JP Photovoltaik (1)
The electronic structure of the CdS/Cu2ZnSnS4 (CZTS) heterojunction was investigated by direct and inverse photoemission. The effects of a KCN etch of the CZTS absorber prior to CdS deposition on the band alignment at the respective interface were studied. We find a “cliff”-like conduction band offset at the CdS/CZTS interface independent of absorber pretreatment and a significant etch-induced enhancement of the energetic barrier for charge carrier recombination across the CdS/CZTS interface.