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    • Semiconductive properties of biologically important compounds: Gas adsorption effect on vitamin A (alcohol and acetate)

      Biswanath Mallik Alpana Ghosh T N Misra

      Physical and Theoritical Volume 88 Issue 1 February 1979 pp 25-32

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/088/01/0025-0032

    • Keywords

       

      Organic semiconductors; gas adsorption effect; gas adsorption kinetics; semiconductive study

    • Abstract

       

      The change in semiconductive properties of vitamin A (alcohol and acetate) after adsorption of various vapours on its crystallite surface has been studied at a constant sample temperature. A rapid enhancement in the semi-conductivity has been observed. The rise in conductivity has been found to be exponential with increasing vapour pressure of the adsorbed gas. It has been suggested that charge transfer (CT) interaction may be responsible for such conductivity change. The adsorption process being efficiently reversible this CT complex is weakly bound.

      The biological implication of these observations is discussed.

    • Author Affiliations

       

      Biswanath Mallik1 Alpana Ghosh1 T N Misra1

      1. Optics Department, Indian Association for the Cultivation of Science, Jadavpur, Calcutta - 700 032

    • Dates

       
      Published
      February 1979
      Manuscript received
      1 September 1978
      Manuscript revised
      27 November 1978

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