Preparation, structure and optical properties of glasses in the systems selenium-sulphur and tellurium-sulphur

Jecu, Doina; Jaklovszky, Jenö; Trutia, Ath.; Apostol, I.; Dinescu, M.; Mihăilescu, I. N.; Aldica, G.; Popescu, M.; Vlahovici, Nicolae; Zamfira, Sorin Constantin; Indrea, Emil

doi:10.1016/s0022-3093(87)80435-0

Cited by 10 publications

(6 citation statements)

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“…Concerning structural properties, relatively few investigations have been done on these alloys. The compositional range for fabrication of amorphous Se-S films was studied by Jecu et al [7] considering the radial distribution functions (RDF) obtained from X-ray diffraction (XRD) measurements. They suggested that mixed Se-S configurations occur in the films.…”

Section: Introductionmentioning

confidence: 99%

Reverse Monte Carlo simulations of an amorphous Se0.90S0.10 alloy produced by mechanical alloying combining XRD and EXAFS data

Machado

Sánchez

Brunatto

2010

Journal of Non-Crystalline Solids

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The local atomic order of an amorphous Se 0.90 S 0.10 alloy produced by Mechanical Alloying was studied by reverse Monte Carlo simulations combining X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) data obtained on Se K edge. From the simulations structural properties such as average interatomic distances and average coordination numbers were determined and compared with the values extracted using only XRD data in the simulations. In addition, the bond-angle distribution functions Θ ijℓ (cos θ) were obtained, and they indicate the existence of Se n clusters in the alloy and also the substitution of Se atoms by S atoms in some of these clusters.

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Section: Introductionmentioning

confidence: 99%

Reverse Monte Carlo simulations of an amorphous Se0.90S0.10 alloy produced by mechanical alloying combining XRD and EXAFS data

Machado

Sánchez

Brunatto

2010

Journal of Non-Crystalline Solids

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“…Much work has been done on the thermal, electrical, and optical properties of selenium chalcogenide glasses (Jecu-Doina et al , 1986; El-mously et al , 1978; Wahab et al , 2000). The selenium–sulfur compounds are particularly interesting as they may be easily synthesized in either crystalline or glassy phases.…”

Section: Introductionmentioning

confidence: 99%

The effect of the partial substitution of sulfur on the structural and microstructural properties of selenium

El-Den

El‐Sayed

2002

Powder Diffr.

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Samples of amorphous Se, SSe40, SSe30, and SSe20 were synthesized and were then crystallized by annealing at 373 K for 5, 20, and 120 mins. The results showed that the changes in the structural and microstructural parameters for samples SSe40, and SSe30 are different from those of sample SSe20. These discrepancies are being discussed in terms of the peak shifts in both the amorphous and crystalline state, the percentage of sulfur compositional variations, and finally in terms of the probable site occupancy of the sulfur atoms in the selenium structure.

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“…The chain and the ring formation in the atomic structures of these composition series were studied, as well as the link between the photo‐darkening and the photocrystallization of these samples. [ 20 ]…”

Section: Historical Overview Of Chalcogenide Science In Romaniamentioning

confidence: 99%

Chalcogenide Science in Romania

Lőrinczi

Badica

Boţilă

et al. 2020

Physica Status Solidi (b)

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Almost six decades ago, in Romania a small group of physicists begun to study chalcogenide compositions, motivated primarily by the desire to understand the phase‐change phenomenon in these materials, discovered recently, at that time, by Stanford R. Ovshinsky. It took not too long for them to realize the challenges these materials set to the research. With newcomers to the field, the research was broadened. In some cases just for basic research, to model, and to understand the chalcogenide materials, whereas in other cases, the applicative potential was revealed and used. Herein, the evolution of the field of these somewhat exotic materials is followed, listing the main contributions done in Romania, both in basic and applied research.

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Preparation, structure and optical properties of glasses in the systems selenium-sulphur and tellurium-sulphur

Cited by 10 publications

References 1 publication

Reverse Monte Carlo simulations of an amorphous Se0.90S0.10 alloy produced by mechanical alloying combining XRD and EXAFS data

Reverse Monte Carlo simulations of an amorphous Se0.90S0.10 alloy produced by mechanical alloying combining XRD and EXAFS data

The effect of the partial substitution of sulfur on the structural and microstructural properties of selenium

Chalcogenide Science in Romania

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