Optical properties of Ge–Se–Te wedge-shaped films by using only transmission spectra

On the study of the optical constants for different compositions of Sn x (GeSe)100−x thin films in terms of the electronic polarizability, electronegativity and bulk modulus

“…A good correspondence exists between the electronic polarizability estimated by the abovementioned Eqs. (5,6,8). According to this approach, no experimental data are needed to estimate the bulk modulus and electronic polarizability for (Ge 1 Se 2 ) 1-x Sn x films except the electronegativity or the optical band gap.…”

“…The common feature of these glasses is the presence of localized states in the mobility gap due to the absence of long-range order as well as various inherent defects. Most of the physical properties of amorphous semiconductors are controlled by the density of localized states in the mobility gap [8]. Among the chalcogenide glasses, binary Ge-Se system has been extensively studied due to their excellent transparency in the far infrared wavelength range and their highly refractive index [9].…”

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

“…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,…”

“…For instance, the effect of composition on the optical parameters of Ge-Se-Te thin films has been investigated by different groups [24,26]. It has been reported that the band gap of Ge x Se 50 Te 50-x increases with increasing of the Ge concentration [24].…”

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.…”