@Article{CL.2023.201.55,
AUTHOR = {S. W. Xu, T. W. Liang, X, Y, Zhu},
TITLE = {The effect of the structure on the physical properties in Ge<sub>x</sub>As<sub>10</sub>Se<sub>90-x</sub> glasses},
JOURNAL = {Chalcogenide Letters},
VOLUME = {20},
YEAR = {2023},
NUMBER = {1},
PAGES = {55--62},
URL = {http://www.techscience.com/CL/v20n1/65345},
ISSN = {1584-8663},
ABSTRACT = {We have prepared a group of Ge<sub>x</sub>As<sub>10</sub>Se<sub>90-x</sub> glass(x=5, 10, 15, 20, 25, 30, and 35 at. %) and 
investigated their structure and physical properties. It was found that, the minimum 
refractive index and maximum optical bandgap occur in Ge<sub>25</sub>As<sub>10</sub>Se<sub>65</sub> glass that is 
chemically stoichiometric. Analysis of Raman spectra of the glasses indicated that the 
number of the Ge-Ge, As-As, and Se-Se homopolar bonds is closely related to the bandgap, 
because the band-tails formed by homopolar bonds could reduce the optical bandgap. The 
transition behavior of the structural units and physical properties of the glasses occurs at 
the glass with the chemically stoichiometric composition, and thus the chemical 
composition dominates physical properties of Ge<sub>x</sub>As<sub>10</sub>Se<sub>90-x</sub> chalcogenide glasses.},
DOI = {10.15251/CL.2023.201.55}
}