Abstract

The electron-vibrational structure in the 2.8–3.6 eV range of the photoluminescence spectrum of borozon polycrystals and single crystals has been investigated. The existence of the structure of the leading PF-1 line, its change depending on the measurement temperature and the quality of the sample and after irradiation at low temperature and annealing, and the electron-phonon interaction on the PF center with the participation of longitudinal optical phonons made it possible to develop a model of donor-acceptor recombination for interpreting the nature of the PF center.

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