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The thin-film Cu-chalcopyrite-based solar cell technologies are becoming more attractive due to their lower cost and optimal performance. High efficiency of small cells might be maintained with the transition to larger areas if small segments are interconnected in series in order to reduce photocurrent in thin films and resistance losses. Interconnect formation is based on three step scribing processes...
We have computed the structural, energetic and elastic properties of the Cu 2 ZnSn(S x Se 1−x ) 4 (x=1, 0.75, 0.5, 0.25, 0) alloys using ab initio density functional theory. For alloys containing both S and Se, a careful choice of permutations of positions for S and Se has to be made for accurately finding the minimum energy structure. The computed lattice constants...
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