Abstract

Thin films of Si:H:N alloys were prepared by r.f. glow-discharge in a SiH 4ArN 2 mixture. The nitrogen content of the films was controlled through the r = N 2/SiH 4 gas molar ratio. Film parameters usually related to disorder were studied, such as the activation energy of the photoconductivity and the optical absorption edge. The results suggest that disorder increases with nitrogen incorporation, in agreement with a steep decrease in the photoresponse of the films.

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