Compositional dependence of physical and structural properties in (Ge1−xGax)S2 chalcogenide glasses

Zhu, Erwei; Zhao, Xuhao; Wang, Jingsong; Lin, Changgui

doi:10.1016/j.jnoncrysol.2018.03.030

Cited by 13 publications

(2 citation statements)

References 43 publications

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“…Consequently, knowledge of the relationship between glass composition, structure and properties of ChGs is important for elaborating new ChGs with superior properties, and also is one of the longstanding research topics in glass science. The compositional dependence on physical and structural properties of numerous ChG systems including Ge-S(Se), As-S(Se), Ge-Sb-S, and Ge-Ga-S [9][10][11][12][13][14] have been investigated in detail. It provides new understanding of ChG structure, e.g., Boolchand Intermediate phase [15,16] and phase diagram structural model [17], which are of great guidance significance for the R&D of novel ChGs.…”

Section: Introductionmentioning

confidence: 99%

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2023

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Ge 12.5 Se 87.5-x Te x (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 v ) and glass transition temperature (T g ) initially increased and then decreased, showing a compositional threshold at x=27.5. It is found that the compositional trend of H v and T 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 12.5 Se 87.5-x Te x glass structure, which imposes an opposite impact on the structural properties (H v and T g ). 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.

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Section: Introductionmentioning

confidence: 99%

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2023

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“…Chalcogenide glasses are important amorphous materials, which have good transparency in the infrared region [1] and high linear [2] and nonlinear refractive indexes. [3] They are widely used in the field of infrared optics, [4] including optical waveguide, [5] optical fiber, all-optical switching, [6] etc.…”

Section: Introductionmentioning

confidence: 99%

Thermal stability of magnetron sputtering Ge–Ga–S films*

et al. 2020

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Ge–Ga–S thin films were deposited by magnetron sputtering with mean coordination number (MCN) ranging from 2.46 to 2.94. The physical properties of the Ge–Ga–S films, including optical band gap, refractive index, and thickness, vary with the time of heat treatment. Based on the analysis of the topology model, it is concluded that the Ge–Ga–S thin films with components close to the stoichiometric ratio can form the most Ga–S bonds and Ga–S bonds, and the physical properties of the Ge27.3Ga6.3S66.3 (MCN = 2.62) film are the most stable. This is an important reference for thin film photonic devices.

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Investigation of the Ga-Sb-S chalcogenide glass with low thermo-optic coefficient as an acousto-optic material

Dai

Liu

et al. 2022

Ceramics International

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Compositional dependence of physical and structural properties in (Ge1−xGax)S2 chalcogenide glasses

Cited by 13 publications

References 43 publications

Untitled

Untitled

Thermal stability of magnetron sputtering Ge–Ga–S films*

Investigation of the Ga-Sb-S chalcogenide glass with low thermo-optic coefficient as an acousto-optic material

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