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Mechanical alloying and ball milling are low cost, up-scalable techniques for the preparation of high purity chalcogenide nanopowders to be used as precursor material for printing thin film solar cells. In this study, high purity copper indium selenium (Cu–In–Se) alloy nanopowders with 20–200nm particle size were synthesized from macroscopic elemental Cu, In and Se powders via mechanical alloying...
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