A study of thermally stimulated currents in thin films of a good ionic conductor (βPbF2) with blocking electrodes

Thin film samples of βPbF₂ are studied by stimulated currents, the TSC peak of lower temperature, independent of the polarization voltage is attributed to the space charge depolarization. On the basis of simplifying hypothesis an exact analytical solution of this problem is also proposed; the comparison with the experimental results allows to get a value of the activation energy of mobile species and to estimate the thickness of the space charge. Electron transfers at the electrodes are assumed to explain the second peak.