Mechanism of photostructural changes in mixed-chalcogen As–S–Se glasses investigated by Raman spectroscopy

• Published in: Journal of physics. D, Applied physics Vol. 44; no. 4; p. 045404
• Main Authors: Lin, Fang-Yin, Gulbiten, Ozgur, Yang, Zhiyong, Calvez, Laurent, Lucas, Pierre
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 02.02.2011; Institute of Physics
• Subjects: Band spectra; Banded structure; Bands; Chemical Sciences; Condensed matter: structure, mechanical and thermal properties; Decay; Disordered solids; Exact sciences and technology; Glass; Glasses; Material chemistry; Oscillators; Photosensitivity; Photostructural changes; Physics; Structure of solids and liquids; crystallography; Arsenic Selenides sulfides; Line intensity; Photosensitivity; Raman spectra; Illumination; Structure modification; Chemical composition; Glass structure; Chalcogenide glasses

The structure and photosensitivity of chalcogen-rich As–S–Se glasses are investigated ex situ and in situ. The Raman spectra of these glasses exhibit three well-defined bands associated with Se-based, S-based and mixed Se–S based structural units. The deconvolutions of these bands show a coherent co...