Compositional trends of gamma-induced optical changes observed in chalcogenide glasses of binary As - S system

作者：Shpotyuk M^*; Shpotyuk O; Golovchak R; McCloy J; Riley B

来源：Journal of Non-Crystalline Solids, 2014, 386: 95-99.

DOI：10.1016/j.jnoncrysol.2013.12.001

• Chalcogenide glasses
• gamma-Irradiation
• Optical spectroscopy
• Destruction-polymerization transformations
• Physical aging

Compositional trends of gamma-induced optical changes in chalcogenide glasses are studied with the binary As- S system. Effects of gamma-irradiation and annealing are compared using the changes measured in the fundamental optical absorption edge region. It is shown that annealing near the glass transition temperature leads to bleaching of As- S glasses, while gamma-irradiation leads to darkening; both depend on the glass composition and thermal history of the specimens. These results are explained in terms of competitive destruction-polymerization transformations and physical aging occurring in As- S chalcogenide glasses under the influence of gamma-irradiation. (C.) 2013 Elsevier B.V. All. rights reserved.

• 出版日期2014-2-15