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Doping and Irradiation Dependence of Electrical Conductivity of Fe^{3+} and Ni^{2+} Doped Polyvinyl Alcohol Films

100%

Vijaya Kumar G., Chandramani R.

issue 6

917-920

PVA and doped PVA films were prepared by solution casting. The Change in electrical conductivity of pure PVA and transition elements FeCl_3 and NiCl_2·6H_2O doped PVA films with and without γ-irradiation in the temperature range 50-130°C has been investigated using four point probe technique. The dc electrical conductivity increases with increase in dopant concentration, with temperature and γ-irradiation. The results revealed that γ-irradiation enhances the electrical conductivity. The variation of electrical conductivity σ with temperature, before and after irradiation is due to the intermolecular hydrogen bonding between Fe^{3+} with OH group of PVA and Ni^{2+} with OH group of PVA. We found that Fe^{3+} doped PVA films show higher conductivity than Ni^{2+} doped PVA films.

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1 Acta Physica Polonica A

1 2010

1 Chandramani R.

1 Vijaya Kumar G.

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Doping and Irradiation Dependence of Electrical Conductivity of Fe^{3+} and Ni^{2+} Doped Polyvinyl Alcohol Films