Effect of iodine on depolarisation behaviour of polyvinyl fluoride (PVF) films

The depolarisation behaviour of PVF films doped with iodine (0-2.0% by weight) has been studied using the TSD technique. The TSD spectra of these films reveal two relaxation peaks. The peak positions, peak currents, charges and activation energies associated with the two peaks are strongly affected by the concentration of iodine and have been explained in terms of formation of charge transfer complexes and molecular aggregates.