Open AccessThe Influence of Chromium Impurity on the Spectral Characteristics of ZnWO4 Crystals
Author(s) -
S. S. Novosad,
Ł. Kostyk,
I. S. Novosad,
М. Rudko
Publication year - 2018
Language(s) - English
DOI - 10.30970/elit2018.b05
Subject(s) - chromium , impurity , materials science , chemical engineering , chemical physics , metallurgy , chemistry , organic chemistry , engineering
The absorption, excitation, and emission spectra under photoand X-ray excitation of ZnWO, ZnWO4:Cr 3+ zinc tungstate crystals have been investigated. The charge trapping and the radiative thermally stimulated recombination processes in ZnWO4 involve six trapping states at at 107, 129, 152, 170 K and 200, 235 K. The activation energies of traps which are responsible for appearance of TSL in the region 80-300 K were estimated.
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