THE STRUCTURE OF DANGLING BONDS HAVING HYDROGEN AT A NEARBY SITE IN A-SI-H

We have deconvoluted the dangling bond ESR spectra into two components , one due to normal dangling bonds and the other to hydrogen-related d angling bonds in glow-discharge a-Si:H samples. The isotropic and anis otropic hyperfine interaction constants due to a hydrogen nucleus are estimated from the deconvolution. It is found that they are mutually r elated through a simple theoretical expression. The distance between t he dangling bond site and hydrogen in the hydrogen-related dangling bo nd and relative densities of the above two types of dangling bonds are also estimated and discussed in correlation with the hydrogen content . (C) 1998 Elsevier Science B.V. All rights reserved.