THERMO-LUMINESCENCE GOVERNED BY SIMULTANEOUS THERMAL-STIMULATION OF ELECTRONS AND HOLES

Results are presented of a theoretical investigation into a complex model, which allows the thermal release of electrons and holes in the same temperature range. The solution of a set of four simultaneous differential equations is required in this investigation. The equations are not amenable to analytical solution, so the equations are solved numerically for given values of the model parameters. Conclusions are drawn about the shapes of the TL curves, and the expected stability of the corresponding traps at given temperatures, and the apparent effective parameters namely the activation energy, the frequency factor, and the order of kinetics, are obtained using the 'general order' formalism. In all cases examined, there is a good three parameter fit to the TL peak generated by the examined model.