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Chalcopyrite CuInSe 2 (CIS) and Cu(In,Al)Se 2 (CIAS) thin films were prepared by a two-stage process onto soda-lime glass substrates. Different Cu/In and Al/(Al+In) thickness ratios have been evaporated in a vacuum chamber to be subsequently heated with elemental selenium in a quasi closed graphite box. Selenization temperatures have been varied from 150°C to 530°C to study the evolution...
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