• Thermal depolarisation current study of electron irradiated fluorinated ethylene propylene

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      https://www.ias.ac.in/article/fulltext/pram/015/06/0515-0523

    • Keywords

       

      Depolarisation; trapping; molecular motion; surface states; fluorinated ethylene propylene; thermally stimulated current

    • Abstract

       

      Thermally stimulated current (TSC) studies have been reported in the co-polymer of tetrafluoro ethylene and hexafluoropropylene films. Depolarisation current peaks are obtained atα1,α2 andβ relaxation temperatures of the polymer and the detrapping process is explained on the basis of its molecular motion. A cross-over electron energy of 18 keV is observed where the nature of TSC spectra undergoes a remarkable change. This is explained in relation to the surface states in FEP. Five groups of trapping levels, 0.25±0.08, 0.57±0.10, 1.07±0.1, 1.3±0.25 and 2.3±0.4 eV are obtained.

    • Author Affiliations

       

      S J Walzade1 J P Jog1 S V Bhoraskar1

      1. Department of Physics, University of Poona, Pune - 411 007, India
    • Dates

       
  • Pramana – Journal of Physics | News

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