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Title: Compositional trends of γ-induced optical changes observed in chalcogenide glasses of binary As-S system

Compositional trends of γ-induced optical changes in chalcogenide glasses are studied with the binary As-S system. Effects of γ-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 γ-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 γ-irradiation.
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Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Non-crystalline Solids, 386:95-99
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
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Country of Publication:
United States
Chalcogenide glasses; γ-Irradiation; Optical spectroscopy; Destruction–polymerization transformations; Physical aging