Surface and bulk effects of K in highly efficient Cu${}_{1-x}$K${}_x$InSe${}_2$ solar cells

Christopher P. Muzzillo, Jian V. Li, Lorelle M. Mansfield +2

To advance knowledge of K bonding in Cu(In,Ga)(Se,S)2 (CIGS) photovoltaic (PV) absorbers, recent Cu-K-In-Se phase growth studies have been extended to PV performance. First, the ef…