Local structures and optical properties of As-Se-Te(S) chalcogenide glasses

Alekberov, R. I.; Isayev, A. I.; Mekhtiyeva, S. I.; Fábián, Margit

doi:10.1016/j.physb.2018.09.031

Cited by 11 publications

(5 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where a, b, c refers to the atomic % of compositional constituents, and N Se =2, N Te =2 and N Ag =2 [13,15] denotes the coordination number of the particular constituent. The coordination chemistry of Ag(I) ion is very complex such that its coordination number varies from 2 to 6 [12].…”

Section: Network Topology and Mean Coordination Number 〈R〉mentioning

confidence: 99%

Topological analysis and glass kinetics of Se-Te-Ag lone pair semiconductors

et al. 2021

View full text Add to dashboard Cite

The physical properties of Ag doped Se based ternary glassy alloys have been examined theoretically. (Se 70 Te 30 )100−x Ag x (0.0 ≤ x ≤ 8.0) chalcogenide alloys have been prepared by quenching method. The results show that the system is in floppy mode having constant average coordination number 2. The estimated density shows an increase with the Ag content. The mean bond energy and glass transition temperature vary in a similar fashion with an increment in Ag atomic % in the Se-Te system. The value of cohesive energy (1.91 eV mol−1 to 1.97 eV mol−1) and average bond strength (24.19 kcal mol−1 to 25 kcal mol−1) has shown increasing trend in the system. From the results of the investigated samples, the covalency parameter > 90%. So, it can be assumed that compositions are stable glass formers and may be used in the infrared system.

show abstract

Section: Network Topology and Mean Coordination Number 〈R〉mentioning

confidence: 99%

Topological analysis and glass kinetics of Se-Te-Ag lone pair semiconductors

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The causes of these processes are described in numerous publications [3][4][5][6]. In this work there is no task to explain these processes, but if the reader is interested, he can familiarize himself with the publication on this topic [6][7][8][9][10][11][12][13][14][15][16]. This article focuses on the practical use of chalcogenide amorphous material as a solid immersion medium for the study of precious stones.…”

Section: Experimental Procedures and Resultsmentioning

confidence: 99%

Effective Diagnostics of Internal Defects of Diamonds in the near Infrared Range on the Basis of Immersion Medium Made from Low-Melting Chalcogenide Glass

Семенча

Dronova

Klinkov

et al. 2019

KEM

View full text Add to dashboard Cite

This paper describes a method for detecting defects inside high-refractive index gems. This method consists in immersion of a precious stone inside low-melting chalcogenide glass. After cooling, molten glass turns into a solid phase and is an optical cube. This cube can be photographed in layers and using OctoNus equimpment a 3D model of gemstone defects can be built. The proposed method allows you to effectively and accurately determine the coordinates of the defects in diamond and to offer the most profitable option for polishing a precious stone.

show abstract

“…34), were calculated and based on the calibration, carried out on the fused silica reference sample, the values of A c (the contact area) were determined. Finally, the Oliver-Pharr method was used (see eqn (5) in ref. 34) to extract the nanohardness (H ind ) of the As 2 Se 3 thin lm as shown in Table 3.…”

Section: Refractive Indexmentioning

confidence: 99%

“…1,2 Also the structural arrangement of chalcogenide glasses is still of interest. [3][4][5] One of the important mechanical characteristics of solids is density, which affects various optical, electrical and mechanical properties. Changes in density can signicantly inuence the refractive index of a material as it follows for example, from the Lorentz-Lorenz relation.…”

Section: Introductionmentioning

confidence: 99%