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Electrical conduction of the Sensitized Polymer observed by a study of Steady-state dark conduction current

Author Affiliations

  • 1Department of Physics Govt. Science College Jabalpur MP, 482001, India

Res. J. Physical Sci., Volume 12, Issue (1), Pages 1-7, February,4 (2024)

Abstract

Steady state dark conduction current has been studied for pure polyvinyl chloride (PVC) and Malachite Green sensitized PVC i.e. 6%, 7.5%, 10%, and 15% with field 30, 60, 90, and 120 kV/cm at temperatures i.e., 60, 75, 90, and 1050C. Furthermore, the magnitude of current in sensitized samples surpasses that of pure PVC. Based on these findings, it can be concluded that the study conducted, the steady-state dark conduction current is found to be dependent on voltage for both pure and sensitized samples at varying temperatures. The curves exhibit the typical ohmic behavior initially, up to 30 kV/cm, but transition to non-ohmic behavior at higher electric fields. In the lower field region, the slope value ranges from 0.52 to 0.94, while in the higher field region, the non-ohmic conduction is characterized by a slope between 1.47 to 1.97. The current increases throughout the studied range of temperature. The increase in electrical current could potentially be attributed to the formation of charge transfer complexes (CTC). The activation energy observed is less than 1 electron volt (eV). It may be caused by electronic conduction. The augmentation in conductivity and reduction in activation energy observed during sensitization indicates the occurrence of a plasticization effect.

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