Effect of Te proportion on the properties of Ge25Sb10Se65-Te  chalcogenide glasses

Yin, Ningning; Chang, Fange; Jian, Zengyun; Gao, Chuanlei

doi:10.1016/j.infrared.2018.11.021

Cited by 15 publications

(4 citation statements)

References 21 publications

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“…The unique photoinduced properties make chalcogenide an excellent material in the fields of optical information storage, lithography, and infrared waveguides [1][2][3]. The participation of different elements also has different effects on the optical properties of the chalcogenide glass [4][5][6][7]. Moreover, the optical, electrical, and structural properties of the chalcogenide change when exposed to band gap light [8,9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ag Doping on Photobleaching in Ge28Sb12Se60 Chalcogenide Films

et al. 2022

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Chalcogenide glass is an optical material with excellent mid-infrared and far-infrared penetration properties. The silver-doped Ge28Sb12Se60 (GSS) chalcogenide films in this paper were deposited on a glass substrate by the co-evaporation technique. A continuous laser with different power outputs was then used to scan the glass material at a constant speed, and the photobleaching (PB) effects were observed using optical microscopy. The results show that silver doping can speed up the PB of GSS film only under high-power laser irradiation. While silver doping helps to speed up the PB effect, it also increases the risk of film damage. This study is beneficial in the development of embedded optical waveguide structures.

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Section: Introductionmentioning

confidence: 99%

Effect of Ag Doping on Photobleaching in Ge28Sb12Se60 Chalcogenide Films

et al. 2022

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“…In fact, the quaternary Ge-Sb-Se-Te system was studied from the point of view of glass-forming ability, 20 structures, 21 thermal properties, 22 optical, and other properties. [23][24] Finally, thin films from the Ge-Sb-Se-Te quaternary system might be considered as a promising alternative to Ge-Sb-Te layers in phase-change memory applications as proposed recently by Wang 25 and Zhang. 26 It has been shown that exposure of amorphous chalcogenides (in both bulk and thin-film forms) with a pulsed laser, having high enough pulse energy density, leads to laser ablation (LA).…”

Section: Introductionmentioning

confidence: 99%

Germanium‐antimony‐selenium‐tellurium thin films: Clusters formation by laser ablation and comparison with clusters from mixtures of elements

Huang,

Halenkovič,

Baillieul

et al. 2021

J Am Ceram Soc.

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Quaternary germanium-antimony-selenium-tellurium (Ge-Sb-Se-Te) thin films deposited from Ge 19.4 Sb 16.7 Se 63.9−x Te x (x = 5, 10, 15, and 20) glass-ceramics targets by radio frequency magnetron sputtering were studied using laser ablation quadrupole ion trap time of flight mass spectrometry. Binary, ternary, and quaternary Ge a Sb b Se c Te d clusters were formed and their stoichiometry was determined. By comparison of the clusters obtained from quaternary Ge-Sb-Se-Te thin films and those from ternary Ge-Sb-Te materials, we found that Ge-Te species are not detected from the quaternary system. Furthermore, Ge-Se and Se-Te species are missing in mass spectra generated from Ge-Sb-Se-Te thin films. From the Ge-Sb-Se-Te thin films, 16 clusters were detected while ternary Ge-Sb-Se glasses yielded 26 species. This might be considered as a signal of higher stability of Ge-Sb-Se-Te thin films which is increasing with a higher content of Te. The missing (Se 2 + , Ge a Sb + (a = 1-4), and GeSe c + (c = 1, 2)) and new (Ge + and Sb b Te + (b = 1-3)) clusters may indicate that some of the structural features of the films (Ge 2 Se 6/2 and Se 2 Sb-SbSe 2 ) were replaced by (GeSe 4−x Te x and SbSe 3−x Te x ) ones.In addition, when comparing the stoichiometry of clusters formed from Ge-Sb-Se-Te thin films with those from the mixtures of the elements, only Sb 3 + and SbSe + were observed in both cases. The knowledge gained concerning clusters stoichiometry contributes to the elucidation of the processes proceeding during plasma formation used for the chalcogenide thin films deposition.

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“…Among these methods, electrochemical-based pH sensors have great potential to be miniaturized and integrated into a cell culture system, especially potentiometric sensors. It is well-known that various metal oxides such as copper oxide 36 , iridium oxide 5,[37][38][39][40] , tungsten oxide [41][42][43][44] , cobalt oxide 45 , titanium oxide 45 , ruthenium oxide 39 , zinc oxide 46 , indium tin oxide [47][48][49] , and palladium oxide [50][51][52][53] can be used as a pH sensing material in a potentiometric sensor. The fabrication of this type of pH sensor can be simplified to develop a straightforward compact pH sensor that can be easily integrated into different cell culture systems.…”

Section: Introductionmentioning

confidence: 99%

PHAIR – A biosensor for pH measurement in air-liquid interface

Dabaghi

Saraei

et al. 2020

Preprint

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1AbstractIn many biological systems, pH can be used as a parameter to understand and study cell dynamics. However, measuring pH in live cell culture is limited by the sensor ion specificity, proximity to the cell surface, and scalability. Commercially available pH sensors are difficult to integrate into a small-scale cell culture system due to their size and are not cost-effective for disposable use. We made PHAIR - a new pH sensor that uses a micro-wire format to measure pH in vitro human airway cell culture. Tungsten micro-wires were used as the working electrodes, and silver micro-wires with a silver/silver chloride coating were used as a pseudo reference electrode. pH sensitivity, in a wide and narrow range, and stability of these sensors were tested in common standard buffer solutions as well as in culture media of human airway epithelial cells grown at the air-liquid interface in a 24 well cell culture plate. When measuring the pH of cells grown under basal and challenging conditions using PHAIR, cell viability and cytokine responses were not affected. Our results confirm that micro-wires-based sensors have the capacity for miniaturization, and detection of diverse ions while maintaining sensitivity. This suggests the broad application of PHAIR in various biological experimental settings.

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Effect of Te proportion on the properties of Ge25Sb10Se65-Te chalcogenide glasses

Cited by 15 publications

References 21 publications

Effect of Ag Doping on Photobleaching in Ge28Sb12Se60 Chalcogenide Films

Effect of Ag Doping on Photobleaching in Ge28Sb12Se60 Chalcogenide Films

Germanium‐antimony‐selenium‐tellurium thin films: Clusters formation by laser ablation and comparison with clusters from mixtures of elements

PHAIR – A biosensor for pH measurement in air-liquid interface

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