CIGSe thin-film solar cells: EU Sharc25 project increases efficiency
Producing thin-film solar modules requires much less energy than conventional wafer-based Si PV modules, and therefore their energy payback time is much shorter. Chalcopyrite-structured compounds of copper, indium, gallium, and selenium (CIGSe) are an important class of materials for thin-film PV, because CIGSe absorbs incident light much better than silicon, and so a very thin layer grown on a