1. Prospects of wide-gap chalcopyrites for thin film photovoltaic modules
2. Device and material characterization of Cu(InGa)Se2 solar cells with increasing band gap
3. H. W. Schock, in Proceedings of the 12th European Photovoltaic Solar Energy Conference, edited by R. Hill, W. Palz, and P. Helm (Stephens, Bedford, 1994), p. 944.
4. M. Powalla, G. Voorwinden, and B. Dimmler, in Proceedings of the 14th European Photovoltaic Solar Energy Conference, edited by H. A. Ossenbrink, P. Helm, and H. Ehmann (Stephens, Bedford, 1997), p. 1270.
5. Admittance spectroscopy of impurity levels in Schottky barriers