FSDP-related correlations in ¦Ã-irradiated chalcogenide semiconductor glasses: The case of glassy arsenic trisulphide g-As₂S₃ revised

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• 作者：M. Shpotyuk ; O. Shpotyuk ; R. Golovchak ; P. Demchenko
• 关键词：A. Glasses ; A. Chalcogenides ; C. X-ray diffraction ; D. Optical properties ; D. Radiation damage
• 刊名：Journal of Physics and Chemistry of Solids
• 出版年：2013
• 出版时间：December, 2013
• 年：2013
• 卷：74
• 期：12
• 页码：1721-1725
• 全文大小：942 K

文摘

Influence of high-energy ¦Ã-irradiation on the FSDP in XRD pattern is investigated at the example of g-As₂S₃. Spectroscopic measurements in the fundamental optical absorption edge regions were used to characterize the value of ¦Ã-induced changes through the observed darkening effect. It is concluded that ¦Ã-irradiation with ~3 MGy dose does not produce any detectable changes in the FSDP parameters, but leads to the appearance of satellite peaks at the left and right sides of the FSDP. Detailed analysis allows attributing of these peaks to crystalline As₂O₃ and S phases, which appear at the surface of g-As₂S₃ after prolonged ¦Ã-irradiation. Some correlations with the value of ¦Ã-induced optical changes in g-As₂S₃ were detected only for pre-FSDP.