Abstract
Reactively sputtered hydrogenated amorphous silicon films with significant amount of unintentionally incorporated oxygen and nitrogen have been studied through quantitative analysis of infrared absorption spectra. The results indicate that the incorporation of oxygen and nitrogen atoms enhance the integrated strengths of 845 and 2090 cm -1 modes respectively. Further the peak position of the 1020 cm -1 mode moves linearly towards higher wave numbers with increasing number of bridging oxygen atoms attached to six bonding positions of the two silicon atoms of the Si-O-Si group.