The paper discusses general characteristics of luminescence in the tungsten doped lithium fluoride crystal, magnesium fluoride ceramics, and zinc tungstate crystal. The comparison of the luminescence spectra, excitation, absorption and kinetic characteristics of the luminescence decay revealed a number of common features. It is concluded that nanodefects of similar composition, spatial and energy structure enter these materials during synthesis. The paper proposes a band scheme of the system, which is embedded in the matrix band structure of the nanodefect phase with radiative levels of the luminescence centers, the structural elements of nanodefects.

Topics
Ceramics, Transition metals, Chemical elements, Inorganic compounds, Luminescence spectroscopy
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© 2019 Author(s).
2019
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