The dielectric dispersion of insulating films with long-range movements of charge carriers

Based on the ion hopping model, the dielectric dispersion of insulating films with long-range movements of charge carriers has been analyzed without neglecting space-charge field and diffusion. The complex dielectric constant of films with long-range movements of charge carriers (impurity ions) which are blocked at the electrodes was analyzed. The anomalous increase in the complex dielectric permittivity in the region of low frequency was explained. Finally it was concluded that the analysis developed here is very helpful for a better understanding of the dielectric dispersion of insulating films with long-range movements of charge carriers.