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      https://www.ias.ac.in/article/fulltext/boms/023/03/0227-0232

    • Keywords

       

      Poly(N-methyl pyrrole) ; dielectric relaxation ; ac conduction

    • Abstract

       

      The ac conductivity and dielectric constant of poly(N-methyl pyrrole) thin films have been investigated in the temperature range 77–350 K and in the frequency range 102-102 Hz. The well defined loss peaks have been observed in the temperature region where measured ac conductivity approaches dc conductivity. These loss peaks are associated with the hopping of the charge carriers. The frequency and temperature dependence of ac conductivity have been qualitatively explained by considering the contribution from two mechanisms; one giving a linear dependence of conductivity on frequency and other having distribution of relaxation times giving rise to broad dielectric loss peak.

    • Author Affiliations

       

      Amarjeet K Narula1 Ramadhar Singh2 Subhas Chandra2

      1. Department of Physics, Maitreyi College (Delhi University), Chanakyapuri, New Delhi - 110 021, India
      2. National Physical Laboratory, Dr K S Krishnan Marg, New Delhi - 110 012, India
    • Dates

       
  • Bulletin of Materials Science | News

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