Structure of interfaces in amorphous silicon/silicon nitride superlattices determined by i n s i t u optical reflectance

Abstract
The formation of amorphous hydrogenated silicon/silicon nitride (a‐Si: H/a‐SiNx: H) interfaces is observed in real time by in situ optical reflectance measurements from growing a‐Si: H/a‐SiNx: H superlattices. The optical data are interpreted by a model of atomically abrupt interfaces with macroscopic roughness on a scale of 10 Å.