IR Luminescence of α-Al2O3 – δ at 4–300 K
- Авторы: Sarychev M.N.1, Milman I.I.1, Surdo A.I.2, Abashev R.M.1, Voinov V.S.1
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Учреждения:
- Ural State University
- Institute of Industrial Ecology, Ural Branch
- Выпуск: Том 44, № 11 (2018)
- Страницы: 1032-1034
- Раздел: Article
- URL: https://bakhtiniada.ru/1063-7850/article/view/208042
- DOI: https://doi.org/10.1134/S1063785018110275
- ID: 208042
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Аннотация
It is established that simple color centers of the F+ and F type (anion vacancies with one or two electrons, respectively) in anion-deficient corundum (α-Al2O3–δ) crystals can be transformed into complex centers (including divacancy centers of the F2 type) using a special thermo-optical treatment. A fine structure of the photoluminescence bands of complex centers of both the known and unknown natures was recorded in these crystals at helium temperatures in the near-IR range. A comparison with the photoluminescence bands in neutron-irradiated α-Al2O3 samples with the initial stoichiometric composition reveals their complete similarity, which indicates the possibility of nonradiative formation of complex centers in α-Al2O3.
Об авторах
M. Sarychev
Ural State University
Email: i.i.milman@urfu.ru
Россия, Yekaterinburg, 620002
I. Milman
Ural State University
Автор, ответственный за переписку.
Email: i.i.milman@urfu.ru
Россия, Yekaterinburg, 620002
A. Surdo
Institute of Industrial Ecology, Ural Branch
Email: i.i.milman@urfu.ru
Россия, Yekaterinburg, 620990
R. Abashev
Ural State University
Email: i.i.milman@urfu.ru
Россия, Yekaterinburg, 620002
V. Voinov
Ural State University
Email: i.i.milman@urfu.ru
Россия, Yekaterinburg, 620002
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