Abstract
For pt.I see ibid., vol.20, p.766 (1987). The mechanism of the current peak observed in the current-time characteristics for NBR films, using the voltage-reversal-current (VRC) technique, is investigated. The results suggest that the current peak is due to the electronic space charge formation at the anode. The time (tm) corresponding to the current peak is found to fit reasonably the suggested relation tm=t0 exp( lambda /(T-Tc)), where t0, lambda and Tc are constants and T is the sample temperature. The results of VRC during (and after) UV irradiation emphasise the important role of UV in releasing the trapped space charges.
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