Photoluminescence of deep defect pairs in chalcopyrite ternariesKrustok, Jüri; Raudoja, Jaan; Schön, J.H.; Yakushev, M.; Collan, HeikkiProceedings of the 16th European Photovoltaic Solar Energy Conference. 12001 / p. 887-890 https://tiedejatutkimus.fi/fi/results/publication/0353121300