Analyses of thermally stimulated current curves with no peaks

A theory that enables one to accurately estimate three parameters, namely, an energetic depth of carrier trap site E-t, an escape frequency factor nu and a charge carrier density n(t), from thermally stimulated current (TSC) curves with no peaks is proposed. Generally, these three parameters could not be evaluated from any TSC datum without peak coordinates. Such TSC data are usually measured experimentally in order to separate signals from each other in various composite cases. Our proposed theory makes it possible to evaluate several sets of three parameters. The proposal is a method to compensate the charges lost in experiments. Three types of charge compensation processes are reported in detail. The accuracy of evaluation of each of the three parameters is very good and the E-t values of three significant figures could be obtained by numerical analyses.