Transient Current characteristics in PVDF-PSF blend samples

Abstract

The detailed studies of time dependent absorption and desorption currents at various polarizing fields and temperatures were carried out in PVDF-PSF polyblend samples of different ratio. The systematic analysis of various results from such studies has indicated that the time dependent desorption current in polymer blend samples may be due combined effect of dipole reorientation, space charge dissipation and hopping of charge carriers. Thermal activation of isochronal current in a specific temperature range followed by a peak centered at about 120-160°C, have indicated the close correlation of transient currents with the TSDC’s.