Thermoluminescence and Optical Stimulated Luminescence Studies of Sapphire

Hai Liang Zhang; Ming Fu Zhang; Jie Cai Han; Hai Yang; Cheng Hai Xu; Huai Xin Guo

doi:10.4028/www.scientific.net/AMR.105-106.585

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 105-106Thermoluminescence and Optical Stimulated...

Thermoluminescence and Optical Stimulated Luminescence Studies of Sapphire

Abstract:

Sapphire crystals grown by an improved Kyropoulos-like method were irradiated by gamma rays and electrons in this paper. Thermoluminescence (TL) and optical stimulated luminescence (OSL) properties of sapphire were studied. TL glow curves of sapphire were varied within the room temperature to 500°C at a heating rate of 10min•s-1. The OSL spectra wavelength covered were from 200nm to 700nm. There was a new peak at 220°C, which was produced by the irradiation of gamma rays and electrons. Two broad bands at 330nm and 410nm were found in the luminescence spectra, which were due to transitions of two charge states of an anion vacancy defect, corresponding to F+ and F color centers, respectively.

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Advanced Materials Research (Volumes 105-106)

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585-588

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.105-106.585

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Online since:

April 2010

Authors:

Hai Liang Zhang, Ming Fu Zhang, Jie Cai Han, Hai Yang, Cheng Hai Xu, Huai Xin Guo

Keywords:

Irradiation, Optical Stimulated Luminescence, Sapphire, Thermoluminescence (TL)

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