Correlation between Si-H2 Bond Density and Electron Drift Mobility in a-Si:H Films Prepared by Photochemical Vapor Deposition

Abstract
The correlation between Si-H2 bond density and electron drift mobility in a-Si:H films has been investigated by using the dependence of the film properties on the silane gas pressure in mercury-sensitized photochemical vapor deposition. It was found that the electron drift mobility decreased with increasing the Si-H2 bond density, when the hydrogen contents were about the same amount.