ПРИМЕСНАЯ ФОТОЛЮМИНЕСЦЕНЦИЯ В ТЕЛЛУРИДЕ КАДМИЯ И ФОНОН-ПЛАЗМОННЫЕ ПОВТОРЕНИЯ

Abstract

The photoluminescence (Pl) spectra in CdTe is determined by radiative transitions of band to impurity level type, containing a large number of phonon-plasmon replicas, as well as by excitonic Pl. The problem of the impurity Pl spectra analysis in CdTe, for a wide Pl excitation power range, is considered using Green's functions, infnitesimal perturbations and the Fluctuation-Dissipation Theorem taking into account the interaction with coupled phononplasmon modes. according to the experimental data, the equidistant structure of replicas with increasing excitation power is preserved, but the distance between satellites in the energy scale decreases. each n-th satellite is due to emission of a photon, n-bounded lO-phonons, and absorption of the same number of phonon-bounded plasmons. Phonons and plasmons take part in radiative processes in pairs.