Copper Indium Selenide (CIS) Solar Cell
Copper Indium Gallium Selenide (CIGS) Solar Cell CIGs cells are made with a thin layer of copper indium gallium diselenide Cu(In, Ga)Se 2 (CIGS). CIGS cells have up to 10% efficiency with similar durability as silicon solar cells. Since they are a thin film technology they can be less costly than Si cells. This WAVESol panel from Ascent Solar has