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@article{195710,
        author = {M. B. Nawarkhele and A. V. Kohale},
        title = {D.C. Electrical Conductivity of Iodine Doped Polystyrene Thin Film},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {no},
        pages = {123-127},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=195710},
        abstract = {Conducting polymers represent a transformative class of materials that bridge the gap between conventional plastics and metals. Their unique ability to combine the mechanical flexibility and processability of polymers with the electrical conductivity of semiconductors makes them indispensable for next-generation electronics. In the present work, polystyrene was used as the host polymer and iodine as the dopant to measure DC conductivity. Measurements were conducted using iodine concentrations ranging from 1 wt% to 10 wt% at temperatures of 348 K, 343 K, 338 K, 333 K, 328 K, and 323 K. It was observed that for each temperature, conductivity increased linearly, suggesting ohmic conduction where the current is directly proportional to both the applied voltage and temperature. The results indicate that the conduction is not space-charge limited. The electrical conductivity of the polystyrene films increased with doping concentration. For a specific doping level, conductivity reached a maximum; beyond this point, conductivity decreased. The current in the polystyrene material is controlled by thermally generated carriers. Upon examining the activation energies across different doping percentages, it was found that the activation energy reaches a minimum at the same doping level where conductivity is maximized. This relationship suggests that minimum activation energy is a prerequisite for achieving peak conductivity in these films.},
        keywords = {Activation energy, Charge carriers, Conducting polymers, DC conductivity, Ohmic conduction.},
        month = {March},
        }