A model of a crystalline phosphor with traps with two channels of electron-hole recombination (direct and through the luminescence center) is examined. The dependence of the quantum output of luminescence of one of the channels on the dispersion length of the electron and hole during the hot relaxation stage is established. The dependence of the quantum output of luminescence on the energy of the incident photons, the intensity of the incident light, and its temperature is constructed.
Department of Theoretical Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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