Cложная кинетика фотолюминесценции F-центров в сильно облученном анионодефицитном корунде и ее связь со степенью заполнения электронных ловушек

Abstract

In anion-deficient corundum a significant change in the photoluminescence kinetics of F centers was found. Along with the conditionally fast component with a time constant τF =36 ms, a slower component with τslow >50 ms was registered. The value depends on the measurement temperature as well as on the degree of population of the electron traps. On the basis of the data obtained, physical and mathematical models have been proposed that describe recombination processes involving F centers.