Paper Title:
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.

  Info
Periodical
Advanced Materials Research (Volumes 105-106)
Edited by
Wei Pan and Jianghong Gong
Pages
585-588
DOI
10.4028/www.scientific.net/AMR.105-106.585
Citation
H. L. Zhang, M. F. Zhang, J. C. Han, H. Yang, C. H. Xu, H. X. Guo, "Thermoluminescence and Optical Stimulated Luminescence Studies of Sapphire", Advanced Materials Research, Vols. 105-106, pp. 585-588, 2010
Online since
April 2010
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Price
$32.00
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