• S Guha

      Articles written in Bulletin of Materials Science

    • Amorphous hydrogenated silicon films prepared from a glowdischarge

      S Guha

      More Details Abstract Fulltext PDF

      From a detailed study of electrical and optical properties of amorphous hydrogenated silicon prepared from a mixture of 10% silane and 90% hydrogen, it is shown that the properties of the films compare favourably with the best reported results on those prepared from 100% silane.

    • Investigation on schottky diodes on amorphous hydrogenated silicon

      SM Pietruszko K L Narasimhan S Guha

      More Details Abstract Fulltext PDF

      Schottky barrier diodes with near-ideal characteristics have been fabricated on amorphous hydrogenated silicon prepared by decomposition of a mixture of 10% silane and 90% hydrogen. The interface properties are found to be stable up to heat treatment of 300°C. From a detailed investigation of dark and photovoltaic properties it is concluded that the density of states in the mobility gap is sufficiently small so that there is no significant carrier recombination in the space charge region.

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