18.5% Copper Indium Gallium Diselenide (CIGS) Device Using Single-Layer, Chemical-Bath-Deposited ZnS(O,OH)

The recent development of a chemical-bath-deposited (CBD) ZnS(O,OH) layer that enabled an 18.5%-efficient copper indium gallium diselenide (CIGS) devices using a single-layer of CBD ZnS(O,OH) is reported in this paper. Such buffer layers could potentially replace CdS in the CIGS solar cell.