Annealing effects on some physical properties of Ge5Se25Te70 chalcogenide glasses

The optical parameters of γ-irradiated and annealed thin films of Ge15Se50Te35

“…It is clear that small crystallites are dispersed in the surface of the as-prepared and annealed samples. The appearance of the crystallites in the as-prepared films agree with the conclusions reached by other workers [24,27,[29][30][31].…”

“…Furthermore, Ge strengthens the average bond in this system by cross-linking Se-chain structure, thereby enhancing the glass transition temperature and bond energy [23]. A number of papers have appeared in the literature reporting the physical properties of Ge-Se-Te system [24][25][26][27][28]. The previous works were focusing on the effect of composition,…”

“…It has been reported that the band gap of Ge x Se 50 Te 50-x increases with increasing of the Ge concentration [24]. Additionally, the structure and optical properties of Ge 5 Se 25 Te 70 system have been studied as a function of annealing temperature by A. El-korashy et al [27].…”

Effects of heat treatment on the properties of 99.5Ge23Se67Sb10-0.5CsCl glass

“…The structure of chalcogenide glass is mainly weakly covalently bonded chains made from bidentate chalcogen and cross-linked network formed by three or four ligand Ⅳ and Ⅴ elements, this relatively weak Vander Waals force between links leads to relatively poor mechanical properties, to some extent, limits the application of chalcogenide glass 6 . Micro-crystallization of glass can help to improve the mechanical performance of the chalcogenide glass through heat treatment and addition of nucleation agent, or combination of the two methods [7][8][9] . For example, Guo et al adds PbI in GeS 2 -Ga 2 S 3 to improve its mechanical hardness 10 .…”

Structural correlations of Ge20Se80−xTex glasses based on reverse Monte Carlo simulation

“…A number of papers have appeared in literature reporting the electrical [10,11] and photoelectrical properties [12][13][14] and crystallization kinetics [15][16][17] of Ge-Se-Te glasses. To our best knowledge, there are insufficient studies on the structural correlations of the above system.…”