AsxSe100-x system (0 < or = x < or = 16) studied by StepScan DSC and Raman spectroscopy

Thermal properties of glassy AsxSe100-x system (x = 0, 1, 2, 4, 8, 16) were studied by means of novel calorimetric method StepScan DSC. This method allows separating both reversible (fast) and kinetic (slow) processes. The glass transition temperature, independent of thermal history of glass, was de...

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Bibliographic Details
Published in:Journal of Optoelectronics and Advanced Materials 2007-07, Vol.9 (7), p.1979-1984
Main Authors: Holubova, J, Cernosek, Z, Cernoskova, E
Format: Article
Language:English
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Summary:Thermal properties of glassy AsxSe100-x system (x = 0, 1, 2, 4, 8, 16) were studied by means of novel calorimetric method StepScan DSC. This method allows separating both reversible (fast) and kinetic (slow) processes. The glass transition temperature, independent of thermal history of glass, was determined from reversible part of StepScan DSC record. The Raman spectra of glasses studied are discussed, especially the assignment of band in the high-energy part of spectrum in the range 200-300 cm-1. The attention was also focused on the crystallization of undercooled melts of this system.
ISSN:1454-4164