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Specific features in the kinetics of thermally stimulated luminescence of α-Al2O3 crystals containing defects

  • Semiconductors and Insulators
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Abstract

A study of specific features in the kinetics of thermoluminescence (TL) of defective α-Al2O3 crystals is reported. The TL properties are experimentally shown to be related to the presence of oxygen vacancies of thermochemical or radiation origin. It is established that the differences in the TL kinetics in α-Al2O3 samples grown under different conditions can be accounted for by the hypothesis that the energy spectra of the trapping levels have different widths. As is demonstrated with a titanium impurity, this broadening of the energy spectrum can originate from the presence of traces of native impurities in the α-Al2O3 lattice.

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Authors and Affiliations

  1. Ural State Technical University, 620002, Ekaterinburg, Russia

    V. S. Kortov, I. I. Mil’man & S. V. Nikiforov

Authors
  1. V. S. Kortov
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  2. I. I. Mil’man
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  3. S. V. Nikiforov
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Additional information

Fiz. Tverd. Tela (St. Petersburg) 39, 1538–1543 (September 1997)

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Kortov, V.S., Mil’man, I.I. & Nikiforov, S.V. Specific features in the kinetics of thermally stimulated luminescence of α-Al2O3 crystals containing defects. Phys. Solid State 39, 1369–1373 (1997). https://doi.org/10.1134/1.1130081

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  • DOI: https://doi.org/10.1134/1.1130081

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