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5 articles for “Chalcogenide”
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Study of Lattice Parameter and Nanoparticle Size in Lead Chalcogenides (PbX, X= S, Se and Te)
Abstract: In the present paper, the structural and electronic properties have been studied with help of thermodynamic parameter. The lattice parameter and nanoparticle size in lead chalcogenides [(PbX, X=S, Se and Te)] are calculated with help of fitting parameter under the effect of temperature. The calculated values are close agreement with the experimental results. Keywords: Lead chalcogenides, lattice parameter and energy band gap
Published in International Journal of Energetic Materials · Vol. 4, Issue 1, 2018 · pp. 1–5 Read article
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Synthesis, Characterization and Photoconductive Properties of Antimony Selenium Iodide
Abstract: A shiny needle-shaped polycrystalline chalcogenide compound, SbSeI, was synthesized through a solid-state thermal reaction by combining the constituent elements in a stoichiometric ratio within an evacuated quartz tube at 585°C for 3.5 hours. The resulting compound was characterized using SEM, EDAX, and XRD techniques to confirm its structure and composition. The resistance versus temperature curve revealed the semiconducting nature of the material with a resistivity of 3.5 x 10⁷ Ω-cm …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 1–8 Read article
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Structural and Elastic Properties Calculation of CdX (X= S, Se, Te) Semiconductors from First-Principles
Abstract: First-principle calculations have been performed to calculate the structural and elastic properties of wurzite (wz) CdX(X= S, Se, Te) chalcogenides semiconductor using the plane wave pseudo-potential method within the projected augmented wave approximation (PAW),which works directly with full all electron (AE) wavefunctions and AE potentials. The values of lattice constant (a) and (c), internal parameter (u), Bulk modulus (B), and reduce pressure derivative bulk modulus ( ) using equation of …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 8–15 Read article
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Effect of impurity metal (Fe, Co, Ni) on WSex as good hydrogen evolution catalyst
Abstract: Transition metal chalcogenides are recognized as a category of very promising non-expensive and earth-abundant catalysts for Hydrogen evolution reaction (HER) catalysts. Many literature reports appeared recently on metal selenides due to excellent phyco-chemical properties and for HER, this mini review attempt to give some insight on effect of Fe, Co, Ni to WSex toward efficiency of HER. From the literature report showed that presence of impurities activity with WSex following …
Published in International Journal of Energetic Materials · Vol. 6, Issue 2, 2020 · pp. 31–36 Read article
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Effect of Ge and Pb Impurities on the Optical Properties of Amorphous (Sb2Se3)90Sn10 Thin Films
Abstract: The as prepared samples of [(Sb2Se3)90Sn10]95 M5 [M = Ge, Pb] chalcogenide system were amorphous as evidenced by X-ray diffraction studies. The optical band gap has been estimated with the help of Taucs relation for the as-deposited [(Sb2Se3)90Sn10]95M5 thin films. It is observed that the optical band gap increase with increase in the Ge and Pb content, which may be due to decrease in the density of defect states. This …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 7–14 Read article