Hydrogenated Amorphous Silicon Germanium Alloys Prepared by Triode rf Glow Discharge

Abstract
The a-SiGe:H films produced in the triode system possess better photoconductivity, lower density of dangling bond and very sharp Urbach tail as compared with film produced in the conventional diode system. Such superior properties are attributed to their homogeneous structures, as confirmed by hydrogen evolution experiments and TEM observation.