Fabrication of Light weight Flexible CIGS solar Cells for Space Power Applications

摘要

A novel,non-vacuum and a patented process developed by ISET for manufacturing terrestrial CIGS solar cells was successfully applied to fabricate CIGS solar cells on flexible 50 mu m thick Mo foil for space power applications.Solar cells of area 5.0 cm~2 were fabricated with their AMO efficiency approaching 9.0% with an estimated power density of 250 watts/kg.With further improvements it is possible to fabricate CIGS solar cells with AMO efficiencies approaching 13%.This process can be used to fabricate low cost,light-weight CIGS solar cells on a variety of flexible substrates much lighter than Mo foil to achieve power densities approaching 1.0 kW/kg.