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R. U. Siddikov^*, Kh. M. Sulaymonov, N. Kh. Yuldashev
Chalcogenide Letters, Vol.22, No.10, pp. 855-862, 2025, DOI:10.15251/CL.2025.2210.855
Abstract This paper presents the results of an experimental study of the tens metric and dielectric properties of polycrystalline (BixSb_1-x)₂Te₃ films in the temperature range of 280−480 K and at microwave frequencies. The temperature dependences of the specific conductivity, impedance, and permittivity under the action of uniaxial static deformation are analyzed. The deformation phenomena detected in polycrystalline films under the action of a microwave field are qualitatively interpreted based on the effective medium theory. More >

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M. Danish^a, Z. A. Sandhu^b, S. Sajid^a, S. R. Shafqat^a, R. Abbas^c, M. Shahid^d, N. Amjed^e, A. Abo Elnasr^f, H. T. Ali^f, M. A. Raza^b,*
Chalcogenide Letters, Vol.22, No.10, pp. 863-870, 2025, DOI:10.15251/CL.2025.2210.863
Abstract The increase in energy crisis and environmental concerns are now considering as major hurdle in way to sustainability and clean energy solution. Metal sulfides have been investigated for the fabrication of energy conversion ad storage devices to overcome the effect of energy demand. In this concern, a microemulsion mediated hydrothermal method was employed for the successful synthesis of pure Co₄S₃ and Ce₂S₃-Co₄S₃ binary nanocomposite materials. This study was investigated for Supercapacitor application using cyclic voltammetry and electrochemical impedance spectroscopy. The scanning electron microscope analysis of composite material showed compact smooth morphology with strong interparticle interactions. The More >

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R. K. Mishra^a,*, M. N. Anwar^a, M. A. Hasan^b
Chalcogenide Letters, Vol.22, No.10, pp. 871-882, 2025, DOI:10.15251/CL.2025.2210.871
Abstract This study introduces a novel approach to enhancing the performance of CdTe/IGZO-based heterojunction solar cells by utilizing IGZO as both a window layer and an electron transport layer (ETL). A comprehensive simulation using SCAPS-1D was conducted to evaluate the impact of various transparent conductive oxides (TCOs), including ITO, SnO_₂, ZnO, and FTO, on key photovoltaic parameters such as power conversion efficiency (PCE), open-circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF). The research also explores the critical role of transport layers (HTL/ETL) and their material properties, band alignment, carrier mobility, and defect density, in More >

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S. N. Yasinova^a,b,*, A. B. Rzayeva^a,b, M. H. Huseynaliyev^b, B. T. Hagieva^a, G. M. Huseynov^a,b
Chalcogenide Letters, Vol.22, No.10, pp. 883-888, 2025, DOI:10.15251/CL.2025.2210.883
Abstract The thin films and powders of PbS, PbSe, and PbSe and PbS_0.5Se_0.5 have been obtained by chemical precipitation method. The X-ray spectra of the obtained thin layers were obtained through the"Miniflex 600" diffractometer, and elemental analyses were performed. Thermogravimetric analyses of the powders of all three compounds were conducted in the temperature range of 20-800°C using the "NETZSCH STA 449 F3" apparatus. It has been determined from the X-ray spectra that the angular positions of all the peaks of PbS, PbSe, and PbSe and PbS_0.5Se_0.5 thin layers coincide with the positions of the corresponding diffraction peaks More >

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K. Wang^a,b,*, G. L. Lian^c, Y. F. Qiao^d
Chalcogenide Letters, Vol.22, No.10, pp. 889-904, 2025, DOI:10.15251/CL.2025.2210.889
Abstract The remediation of acid mine drainage (AMD), characterized by its high concentrations of toxic metal ions and low pH, presents a significant environmental challenge. In this study, exfoliated two-dimensional MoS_₂ nanosheets were prepared using a liquid-phase ultrasonication method and evaluated for their efficiency in removing Cd^²⁺, Cu^²⁺, and Pb^²⁺ from aqueous solutions. Detailed structural and morphological analyses confirmed that the exfoliation process significantly enhanced surface area, pore volume, and exposure of reactive sulfur sites. Through isotherm and kinetic modeling analyses, the adsorption behavior was found to align with the Langmuir model and pseudo-second-order kinetic equation, which implies More >

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S. Younus, N. Amin^*, A. Ali, K. Mahmood
Chalcogenide Letters, Vol.22, No.10, pp. 905-915, 2025, DOI:10.15251/CL.2025.2210.905
Abstract Wastewater generated by the textile industry contains high levels of various pollutants. Advanced conventional methods, such as chemical and electrical treatments, are effective in addressing these contaminants. However, the significant operational and capital costs associated with these conventional systems limit their accessibility for industrial stakeholders. In contrast, more economically viable methods tend to be less efficient. This study aims to identify a suitable approach for integrating photocatalytic degradation (PCD) with a low-cost method to enhance the cost-effectiveness of wastewater treatment processes in the textile sector. The study utilized silver copper sulfide (AgCuS) nanocomposites as a… More >

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T. J. Li^a,*, Y. Yue^a, L. P. Qu^a, H. J. Hou^b, S. H. Fan^b, H. L. Guo^c, S. R. Zhang^d
Chalcogenide Letters, Vol.22, No.10, pp. 917-927, 2025, DOI:10.15251/CL.2025.2210.917
Abstract The material AgAlSe₂, which adopts a chalcopyrite crystal structure, has attracted significant attention owing to its promising functional properties. To further explore its characteristics, theoretical method was conducted to explore its elastic behavior, electronic structure, dynamic stability, and thermodynamic features. The lattice parameters and elastic constants obtained through simulation agrees well with the reported data. Additionally, the mechanical stability of AgAlSe₂ was assessed through its elastic constants, confirming its structural integrity. Electronic property analysis reveals that AgAlSe₂ exhibits semiconducting behavior, featuring a direct band gap of approximately 1.1377 eV. More >

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