Growth and Optical Properties of Cu(In, Ga)Se2 Thin Films on Flexible Metallic Foils

Polycrystalline Cu(In, Ga)Se2(CIGS) thin films on flexible metallic foils were prepared by two-stage selenization of sequentially deposited Cu, Ga and In precursors. The selenization procedure was carried at various recrystallization temperatures (T s) ranging from 230 to 520 °C. The phases, surface morphologies, microstructures and elemental depth profiles of the CIGS films prepared on different metallic flexible foils (titanium, molybdenum, …