Abstract
The electronic structure of an oxygen vacancy in α-Al2O3 and γ-Al2O3 is calculated. The calculation predicts an absorption peak at an energy of 6.4 and 6.3 eV in α-Al2O3 and γ-Al2O3, respectively. The luminescence and luminescence excitation spectra of amorphous Al2O3 are measured using synchrotron radiation. The presence of a luminescence band at 2.9 eV and a peak at 6.2 eV in the luminescence excitation spectrum indicates the presence of oxygen vacancies in amorphous Al2O3.
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Original Russian Text © V.A. Pustovarov, V.Sh. Aliev, T.V. Perevalov, V.A. Gritsenko, A.P. Eliseev, 2010, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2010, Vol. 38, No. 6, pp. 1119–1126.
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Pustovarov, V.A., Aliev, V.S., Perevalov, T.V. et al. Electronic structure of an oxygen vacancy in Al2O3 from the results of Ab Initio quantum-chemical calculations and photoluminescence experiments. J. Exp. Theor. Phys. 111, 989–995 (2010). https://doi.org/10.1134/S1063776110120113
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DOI: https://doi.org/10.1134/S1063776110120113