Optoelectronic properties of amorphous hydrogenated silicon-germanium alloys

Abstract

A study on amorphous hydrogenated silicon-germanium alloys is presented. Amorphous thin films are grown by glow discharge decomposition of silane/germane gas mixtures, in the presence of a large hydrogen concentration. Optical, electrical and photoelectrical properties of intrinsic alloys are reported and their effect on the performance of p-i-n photovoltaic devices is discussed.