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Proposing Institution

Technische Chemie - Arbeitskreis Kühne - Universität Paderborn
Project Manager

Dr. S.Hossein MirHosseini
Warburgerstr. 100
33098 Paderborn
Thin-film solar cells based on Cu(In,Ga)Se2 (CIGSe) have the highest efficiency (22.6%) among thechalcogenide-based solar cells. In contrast to Si- or GaAs-based solar cells, the conversion efficiency of polycrystalline CIGSe solar cells exceeds that of single crystal cells in spite ofthe presence of grain boundaries (GBs). Regarding this fact, it is highly desirable to study the atomic and electronic structure of GBs in CIGSe and similar absorber materials such as CdTe and Cu2ZnSnSe4 to have a better understanding of the nature of GBs in chalcogenide-based absorbers. We aim to study the energetics and electronic structure of point defects at the GBs of chalcogenide-based absorber materials. Further, we aim to study the diffusion mechanisms of the impurities along the GBs.

Impressum, Conny Wendler