Thermally stimulated currents in polymers and dielectrics

Summary form only given, as follows. One of the main problems in the theory of thermally stimulated currents (TSC) is to take into account retrapping effects which take place during thermal release of trapped carriers. The authors derived an equation in the generalized Randall-Wilkins form for the case where there is only one type of charge carrier and the observed current originates from space-charge carriers trapped in the sample. This equation was obtained for an arbitrary form of the relation I=I(n/sub c/) and for an arbitrary number of discrete trap levels. The authors also developed a method of applying this equation the curve-fitting procedure-a way of treating the inversed problem of calculating the TSC curve when all parameters are known. Numerical calculations have been done to compare the results with the Randall-Wilkins solution.<>