Defect evolution and photoluminescence in anion-defective alumina single crystals exposed to high doses of gamma-rays
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- 作者：V.S. Kortov ; vskortov@mail.ru" class="auth_mail" title="E-mail the corresponding author ; V.A. Pustovarov ; T.V. Shtang
- 关键词：Alumina ; VUV spectroscopy ; Oxygen vacancies ; Aggregate centers ; High-dose irradiation
- 刊名：Radiation Measurements
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：85
- 期：Complete
- 页码：51-56
- 全文大小：689 K
文摘
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PL of alumina exposed to high doses was measured under UV and VUV excitations.
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The emission of F+ and F-centers decreases with a growing dose.
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New wide emission bands appear in the PL spectrum after irradiation.
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Oxygen divacancies are formed under high-dose irradiation of alumina crystals.
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High-dose exposure intensifies PL in the red–NIR spectral region.