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8 August 2003 Phenomenological model of radiation-induced optical effects in Sb2S3-GeS2(Ge2S3) chalcogenide glasses
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Proceedings Volume 5122, Advanced Organic and Inorganic Optical Materials; (2003) https://doi.org/10.1117/12.515710
Event: 2003 Chapter books, 2003, Bellingham, WA, United States
Abstract
The influence of γ-irradiation on optical properties of the pseudobinary "stoichiometric" Sb2S3-GeS2 and the non-stoichiometric Sb2S3-Ge2S3 chalcogenide glasses (ChG) prepared by a standard melt-quenching method is studied. It is established that in the case of the both investigated cut-sections the "γ-darkening" effect (i.e. the "red" shift of the fundamental optical absorption edge), consisting the dynamic (relaxing with time) and the static (remaining constant approximately two months after irradiation) components, takes place. The comparison of compositional trend of the "γ-darkening" effect for the pseudobinary and the non-stoichiometric investigated ChG is made. Phenomenological description of the observed effects is carried out taking the degree of chemical bond metallization, concentration of chemical bonds and free volume parameters into consideration.
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Oleh I. Shpotyuk, Taras S. Kavetskyy, and Andriy P. Kovalskiy "Phenomenological model of radiation-induced optical effects in Sb2S3-GeS2(Ge2S3) chalcogenide glasses", Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); https://doi.org/10.1117/12.515710
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