Detection of minority traps by simultaneous measurement of thermoluminescence and thermally stimulated conductivity

Generally, thermoluminescence (TL) and thermally stimulated conductivity (TSC) measurements are carried out to detect majority traps. It is pointed out in this communication that a careful analysis of the ratio R(=σTSC/ITL) and ITL, where σTSC is the thermally stimulated conductivity and ITL is the intensity of thermoluminescence, has the potential of revealing information about the hole emission and hole traps. These two cases can be differentiated by comparing the initial rise of the temperature derivative of 1/R, i.e., (d/dT)(1/R) and ITL. It is also possible to estimate the activation energy of shallow hole traps.