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

• Authors: G. Vijaya Kumar , R. Chandramani
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

68.55.Ln; 72.80.Le; 61.80.x

Discipline

• 68.55.Ln: Defects and impurities: doping, implantation, distribution, concentration, etc.(for diffusion of impurities, see 66.30.J-)
• 72.80.Le: Polymers; organic compounds (including organic semiconductors)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 6
• Pages: 917-920

Dates

published

2010-06

received

2008-12-05

Contributors

author

G. Vijaya Kumar

• Department of Physics, Bangalore University, Bangalore-560 056, Karnataka, India

author

R. Chandramani

• Department of Physics, Bangalore University, Bangalore-560 056, Karnataka, India

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Identifiers

DOI

10.12693/APhysPolA.117.917