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	Structural, thermal and optical properties and transition threshold in Ge-Sb-Se glassy system
	Wei, Wen-Hou
	2020-05-15
摘要	Four groups of Ge-Sb-Se chalcogenide glasses with compositions of GexSb10Se90-x (10 <= x <= 32.5), GexSb15Se85-x (5 <= x <= 27.5), GexSb20Se80-x (5 <= x <= 25), and Ge12.5SbxSe87.5-x (5 <= x <= 25) were prepared to systematically study their structural, thermal, and optical properties over a very wide compositional range. The structures, densities, glass transition temperatures, refractive indices, Vis-NIR and IR transmission spectra of the Ge-Sb-Se glasses show strikingly similar transitional features in the stoichiometric compositions. The transition behaviors of the structural, thermal, and optical properties of the Ge-Sb-Se glasses can be ascribed to the 'demixing' of the glassy network above the stoichiometric compositions.
关键词	Chalcogenide glasses Structure Synchrotron X-ray powder diffraction Optical properties Phase transitions
DOI	10.1016/j.jnoncrysol.2020.119991
发表期刊	JOURNAL OF NON-CRYSTALLINE SOLIDS
ISSN	0022-3093
卷号	536页码:7
通讯作者	Wei, Wen-Hou(weiwenhou@cigit.ac.cn)
收录类别	SCI
WOS记录号	WOS:000527028300005
语种	英语