期刊
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
卷 111, 期 6, 页码 989-995出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1063776110120113
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资金
- Siberian Branch, Russian Academy of Sciences [70]
The electronic structure of an oxygen vacancy in alpha-Al2O3 and gamma-Al2O3 is calculated. The calculation predicts an absorption peak at an energy of 6.4 and 6.3 eV in alpha-Al2O3 and gamma-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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