Unstable Luminescence and "Memory Effect" in Nitrides Irradiated by Electron Beam
In this paper the effect of unstable luminescence in nitrides was studied, notably the phenomena of cathodoluminescent intensity rising under stationery electron beam irradiation with typical times of tens up to hundreds of seconds. Long-lasting impact by electron beam leads to changes of cathodoluminescence properties of irradiated area. The changes still remain even after keeping structures at room temperature for several days. Reversibility of this "memory effect" was examined. A model of effect observed was proposed and experimentally verified.
Y. V. Kuznetsova and M. V. Zamoryanskaya, "Unstable Luminescence and "Memory Effect" in Nitrides Irradiated by Electron Beam", Solid State Phenomena, Vols. 205-206, pp. 435-440, 2014