@Article{CL.2023.201.1,
AUTHOR = {L. Yang, G. J. Zhou, C. G. Lin},
TITLE = {Composition-dependent properties and network structure of Ge-Se-Te chalcogenide glasses},
JOURNAL = {Chalcogenide Letters},
VOLUME = {20},
YEAR = {2023},
NUMBER = {1},
PAGES = {1--9},
URL = {http://www.techscience.com/CL/v20n1/65341},
ISSN = {1584-8663},
ABSTRACT = {Ge<sub>12.5</sub>Se<sub>87.5-x</sub>Te<sub>x</sub> (0≤x≤45) glasses were selected for elucidating the composition-dependent 
properties and network structure of Te-containing glasses. With increasing Te content (x), 
Vickers hardness (H<sub>v</sub>) and glass transition temperature (T<sub>g</sub>) initially increased and then 
decreased, showing a compositional threshold at x=27.5. It is found that the compositional 
trend of H<sub>v</sub> and T<sub>g</sub>g is in good accordance with the structural evolution studied by Raman 
spectra. The results suggest that the introduction of Te leads to the evolution of the 
network connectivity and average bond strength of Ge<sub>12.5</sub>Se<sub>87.5-x</sub>Te<sub>x</sub> glass structure, which 
imposes an opposite impact on the structural properties (H<sub>v</sub> and T<sub>g</sub>). This work provides a 
new insight to the structure-property correlation of Ge-Se-Te, which would facilitate the 
understanding of the structural role of Te in ChGs. },
DOI = {10.15251/CL.2023.201.1}
}