— The influence of sulfur concentrations on the growth of ZnS thin films were investigated by low cost chemical spray pyrolysis and chemical bath deposition techniques. The deposited ZnS films showed the major peaks at (1 1 1) zinc blende structure from X-ray-diffraction. The FESEM analysis resulted that the deposited films were identified as …
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— The nanowire structure with a high concentration of sulfur in the solution is a promising way to improve the Bi 2 S 3 thin film solar cell. Discover the world's research 25+ million members
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— The grain size, optical gap, and atomic contents of copper (Cu), zinc (Zn), tin (Sn), and sulfur (S) in a CZTS thin film absorber relate to the concentrations of aqueous precursor solutions ...
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— The negative characteristics of the S-rich SnS x film feature a desirable n-type carrier concentration due to an increase in the atomic concentration ratio of Sn 4+ /(Sn 4+ + Sn 2+). It is possible to get samples with p- or n-type conductivity controlling the sulfur concentration in the SnS x films. Another goal of this paper is to show that ...
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— Ternary semiconductor Cd x Zn (1−x) S thin films are prepared by chemical bath deposition (CBD) using N-methyl thiourea as an alternative sulfur precursor. Molar concentration of CdSO 4 has been varied from 0.01 M to 0.09 M during the fabrication process of Cd x Zn (1−x) S thin film. Effect of variation in Cd 2+ molar concentration on …
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Effect of sulfur concentration on structural, optical and electrical properties of Cu2CoSnS4 absorber film for photovoltaic devices. gülden yıldız şengüler. 2023, Physica B …
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— An additional increase in the sulfur concentration led to a significant change in CdS morphology. The CdS film surface changed from a granular structure to a more compact, homogenous and a dense ...
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— Adsorbed sulfur occupies the position of sulfur vacancy defect in the crystal through internal diffusion, which leads to the decrease of defect concentration and the improvement of film quality.
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— The absorbance values drop with increase in pH and sulfur concentration. This could be due to the decreased thickness of the films formed at pH 3 and at 110 mM sulfur concentration. The band gap of the materials forming the deposits is calculated from the absorbance data using the Tauc relation [27]. (2) α = A (E − E g) n E
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— Figure 4 showed the SIMS spectrum from codoped sample with a B/S ratio of 0.01 and the surface of the film consisting of sulfur atoms, boron atoms, and hydrogen atoms. From the inset shown in Figure 4, the sulfur concentration of B-S codoped diamond films can increase by almost one order of magnitude of S doped diamond films. This …
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— In this work, we developed a facile method to fabricate low-cost, flexible, and high-thermoelectric-performance n-type Ag2Se1–xSx@(Ag2S1–ySey/S) composite film on a nylon membrane. The composite film was prepared by first performing wet-chemical synthesis of the S-doped Ag2Se powder, then vacuum-assisted filtration of the powder …
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— When the sulphur ion concentrations changed, the temperatures and time used to grow the CdS films remained constant in all four cases. As Ashok et al. (2020) showed, at lower temperatures, the …
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— The effects of sulfur concentration on the structural, morphological and optoelectronic properties of the synthesized cadmium sulfide films were studied using a range of characterization ...
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— Sulfur is the most abundant multivalent inorganic non-metal on the earth's crust. Also, more than 60 million tons of elemental sulfur are produced annually, the majority of which are produced as a by-product of the hydrodesulfurization process in the petroleum refining process [1].Sulfur is the most diverse element used in various biomedical fields …
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Abstract: Thin films of Tin oxide doped with deferent concentration of Sulfur were prepared on glass substrates at 400 °C by spray pyrolysis technique. The thin films were characterized to study their physical properties. Effects of Sulfur concentration on structural, optical and electrical properties of transparent Tin Oxide thin films were investigated in …
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— The sulfur clusters dissolved from the edges to the center (Fig. 1d–h and Supplementary Movie 1), consistent with the three-phase interfacial reaction between the sulfur, carbon cathode, and ...
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The ARL QUANT'X EDXRF spectrometerused for this application has a Silicon Drift Detector (SDD) and a 50 kV, 50 W silver target X-ray tube of the new generation. The sample is excited by the primary filtered radiation used by the ARL QUANT'X. The ARL QUANT'X is easily adaptable per application or element range using a …
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Accepted Manuscript Effect of sulfur concentration on structural, optical and electrical properties of Cu2FeSnS4 thin films for solar cells and photocatalysis applications Chayma Nefzi, Mehdi Souli, Yvan Cuminal, Najoua Kamoun-Turki PII: S0749-6036(18)30510-X DOI: 10.1016/j.spmi.2018.09.033 Reference: YSPMI 5906 To appear in: Superlattices and …
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— Sulfates are a combination of sulfur and oxygen and are a part of naturally occurring minerals in some soil and rock formations that contain groundwater. The mineral dissolves over time and is released into groundwater. ... Concentrations less than 1 ppm give the water a "musty" or "swampy" odor. A 1-2 ppm hydrogen sulfide concentration ...
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— High sensitive and low-concentration sulfur dioxide (SO 2) gas sensor application of heterostructure NiO-ZnO nanodisks. Author links open overlay ... Bare SnO 2 thin film sensor showed a gas response of 1.3 at 220 °C whereas NiO/SnO 2 composite sensor showed a gas response of ∼56 towards 500 ppm SO 2 gas with low response …
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— We were able to sample the bulk liquid phase at this location and found that it contained 3.0×10-4 mol SO 2 /mol. Assuming that this system fits film theory, find the thickness of the film. (D_{rm SO_2,H_2O}) = 1.7*10 -9 m 2 s -1
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— The surface morphology and the cross-section image of laser annealed S-hyperdoped silicon film are obtained using a Carl Zeiss UItra-55 type cold field emission scanning electron microscope (SEM), and the sulfur-dopant concentration of film is measured using an energy dispersive spectrometer (EDS) that is equipped in SEM.
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— Zinc sulfide (ZnS) films were deposited through a simple and low cost spray pyrolytic technique using mixed aqueous solutions of zinc nitrate and thiourea. The structural and optical properties of these films were investigated as a function of initial (Zn:S) molar ratio in the precursor solution, which varied between (1:1) and (1:3). X-ray …
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The conductivity of tungsten disulfide (WS2) films using sputtering, which is a physical vapor deposition (PVD), was enhanced using a chlorine (Cl2)-plasma treatment and sulfur-vapor annealing (SVA). For WS2 films to be used in thermoelectric devices, its carrier concentration must be controlled. Therefore, we exposed WS2 films to Cl2-plasma as a …
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— When considering the sulfur dioxide absorption by liquid droplets, two main parts must be taken into consideration. First are the chemical reactions, or the equilibrium concentration of the absorbed …
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— S–TiO 2 catalysts obtained under H 2 S atmosphere at low temperature are highly efficient.. SO 4 2− was formed on the films surface, indicating the substitution of Ti 4+ by S 6+.. XPS depth profile revealed the cationic diffusion of sulfur by the alternative S-doped method. • S-doped TiO 2 film presented 72.1% of dye degradation under visible …
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— We have investigated the effect of sulfur concentration ([S]/[Mo] = 0–10 at.%) on nanostructural, optical and electrical properties of MoO3 thin films grown on glass substrate by spray pyrolysis technique. X-ray diffraction analysis showed that the films were crystallized with mixed structures of MoO3 orthorhombic and MoS2 hexagonal structure. …
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— Quaternary chalcogenide Cu2 FeSnS 4 (CFTS) thin films were successfully elaborated by spray pyrolysis technique on glass substrates using different thiourea …
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changing the concentration of sulfur in the precursor. The nanowire structure with a high concentration of sulfur in the solu-tion is a promising way to improve the Bi 2 S 3 thin lm solar cell. Keywords Spin coating · Bi 2 S 3 solar cell · nanowire · sulfur variation in the precursor · annealing temperature Introduction
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— The sulfur nominal concentration changed by adding different thiourea concentrations, CdS films were deposited at thiourea concentrations ranging from 0.025 …
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Sulfur in Petroleum Oil and Petroleum fuels are manufactured and certified gravimetrically under the guidance of ISO 17034 Sulfur and Metals (Ni, Fe, V) are prepared in 25 cSt Mineral Oil and should be tested with 3026 …
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— Smart films based on semiconductor heterojunctions of mechanoluminescent sulfide and sulfur oxide for stress sensing and anti-counterfeiting applications. ... it was found that by adjusting the doping concentration of Mn 2+ within the heterojunction, the material utilizes its bimodal emission capability to manipulate the fluorescence shift and ...
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— The results show that the crystallinity of ZnS films can be improved by annealing in sulfur atmosphere, and the optical band gap of ZnS films after annealing is 3.43-3.58 eV.
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— The first mention of the sulfur effect on catalyst particles in the production of carbon material appeared in 1972 [63].However, the first attempt to systematically examine the sulfur influence on carbon deposition was realized only twenty-one years later in the CVD synthesis: Kim et al. [64] employed different amounts of hydrogen sulfide for …
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Figure 6 is a histogram of the total sulfur concentration in weight percent in a cross-section of normal marine siliciclastic sedimentary environments (i.e., exclusive of sediments deposited under anoxic conditions, and those dominated by a carbonate matrix). The data come from a range of depths in the sediment column. As noted above, the dominant …
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