Abstract

In this work, the temperature dependence of the key parameters determining the exponential optical absorption coefficient spectra of hydrogenated amorphous silicon (a-Si: H) has been investigated. The study is based on both experimentally obtained values and the results derived from theoretical calculations of the exponential absorption spectrum. Using these results, the temperature dependence of the main parameters governing the exponential absorption spectrum of a-Si: H has been analyzed.

Keywords:Hydrogenated amorphous silicon (a-Si: H); Exponential optical absorption coefficient spectra; Temperature; Energy width of the mobility gap; Parameters determining the curvature of the exponential tails of the valence and conduction bands