Physical ageing in glassy As–Se induced by above-bandgap photoexposure

Physical ageing induced by above-bandgap photoexposure is studied in As–Se glasses using the differential scanning calorimetry technique. The kinetics of this effect are compared with those caused by natural storage in the dark. Acceleration of physical ageing processes is recorded for Se-rich glass...

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Bibliographic Details
Published in:Solid state communications 2008-03, Vol.145 (9), p.423-426
Main Authors: Golovchak, R.Ya, Kozdras, A., Shpotyuk, O.I.
Format: Article
Language:English
Subjects:
A. Disordered systems
Condensed matter: structure, mechanical and thermal properties
D. Thermodynamic properties
Exact sciences and technology
Physics
Thermal properties of amorphous solids and glasses : heat capacity, thermal expansion
Thermal properties of condensed matter
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Summary:Physical ageing induced by above-bandgap photoexposure is studied in As–Se glasses using the differential scanning calorimetry technique. The kinetics of this effect are compared with those caused by natural storage in the dark. Acceleration of physical ageing processes is recorded for Se-rich glasses having more than three Se atoms in their chains.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2007.12.030