• Effect of adsorption of vapours on the electrical conductivity of a series of pyrenyl polyenes: adsorption and desorption kinetics

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    • Keywords


      Pyrenyl polyenes; polyene semiconductors; adsorption kinetics

    • Abstract


      This paper deals with the change in electrical conductivity in a series of pyrenyl polyenes of the typeR-(CH=CH)n-R (whereR stands for the pyrenyl group andn=1−4) on adsorption of various vapours. Appreciable change in the conductivity is observed. The adsorption and desorption kinetics follow a modified Roginsky-Zeldovitch equation. The results show that in all these vapour-semiconductor systems, adsorption is a two-stage process.

    • Author Affiliations


      A Sircar1 T N Misra1

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

  • Journal of Chemical Sciences | News

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