Abstract: In this paper, 100 MeV Silver and 75 MeV Oxygen Swift heavy ions (SHI) irradiation effects on the conduction behaviour of polyvinylidene fluoride (PVDF) have been investigated at different electric field in the temperature range 90 ⁰C to 125⁰C. PVDF samples of 20 µm thicknesswere irradiated with 100 MeV Ag-ion and 75 MeV Oxygen-ion at different fluences. The various mechanisms responsible for the charge transport phenomena were investigated by the studying the Current-voltage (I-V) characteristics at different temperature. The ionic jump distance “a” for pristine and SHI irradiated PVDF thin samples were estimated from I-V characteristics in the form of log I (Ln I) versus Voltage(E) at different temperature. The ionic jump distance estimated from the steady state conduction mechanism confirms the ionic hopping, Schottky and Poole-Frenkel conduction mechanism, which ultimately depends upon the fluence of irradiance. At higher electric fields, the non ohmic current is mainly governed by space charge limited (SCL) conduction and the conduction is mainly due to injected space charge.
 
Keywords: PVDF, SHI, SCL, Ionic jump distance, interfacial polarization

Cite: Dinesh Singh Rana, "Electrical Conduction Investigation of Pristine and swift heavy ion- irradiated Polyvinylidene fluoride Thin Film," International Journal of Materials Science and Engineering, Vol. 4, No. 2, pp. 94-103, June 2016. doi: 10.17706/ijmse.2016.4.2.94-103