Open Access

ARTICLE

S. N. Garibova^a,b,*, А. I. Isayev^a, S. A. Rzayeva^a, F. N. Mammadov^c
Chalcogenide Letters, Vol.22, No.1, pp. 1-9, 2025, DOI:10.15251/CL.2025.221.1
Abstract The structure particulars of amorphous Ge2Sb2Te5 thermally evaporated on glass substrates, as well as films annealed at temperatures of 500 and 700 K have been studied by the considering of experimentally established facts obtained from X-ray analysis and Raman spectroscopy measurements. The Debye-Scherrer and Williams-Hall methods were applied to the X-ray diffraction data for estimate the size of crystallites, interatomic distances, dislocation density and structure distortion degree. The features of heat treatment effect on numerical values of the above quantities at a given temperatures have been established. The analysis of the spectral distribution of Raman… More >

View

9

Download

6

Open Access

ARTICLE

H. A. Ahmed, M. Y. Ali, S. S. Hamood, A. N. Abd^*
Chalcogenide Letters, Vol.22, No.1, pp. 11-22, 2025, DOI:10.15251/CL.2025.221.11
Abstract As a potential substitute for antibiotics, cadmium sulfide and zinc oxide nano-particles (CdS and ZnO NPs) were created using laser ablation and a straightforward chemical process, respectively. Target of cadmium sulfide, deionized water, zinc nitrate, and sodium hydroxide were used as precursors. Different characterization techniques were used to characterize the CdS and ZnO NPs. X-ray diffraction was used to confirm that the CdS and ZnO had polycrystalline structures with average crystalline sizes of 54.16 nm and 29.23 nm, respectively. The ZnO particles were densely packed 2D curved nanopetals with a diameter of 51.65 nm, whereas… More >

View

7

Download

4

Open Access

ARTICLE

M. R. S. Nasuha^a,*, H. Azhan^b,c, L. Hasnimulyati^c, W. A. W. Razali^c, Y. Norihan^c
Chalcogenide Letters, Vol.22, No.1, pp. 23-31, 2025, DOI:10.15251/CL.2025.221.23
Abstract The need for effective shielding materials has grown as radiation-based technologies have been more widely used. Glasses doped with rare earth elements like neodymium oxide, are promising candidates due to their enhanced radiation attenuation properties. Using Phy-X software, this research examines how neodymium oxide doping affects the shielding properties of yttrium lead borotellurite glass. X-ray diffraction confirmed the amorphous structure, while density measurements showed increased density with neodymium oxide addition. The Phy-X software calculated radiation shielding parameters for gamma energies from 10^⁻³ to 10^⁵ MeV. The results demonstrate that neodymium oxide improves gamma irradiation attenuation and More >

View

9

Download

5

Open Access

ARTICLE

G. Yan^a, S. R. Zhang^a,*, H. J. Hou^b, Z. F. Yin^b, H. L. Guo^c
Chalcogenide Letters, Vol.22, No.1, pp. 33-42, 2025, DOI:10.15251/CL.2025.221.33
Abstract The theoretical approach was employed to comprehensively investigate the structural, dynamical, band structure, optical characteristics, and elastic anisotropy of CuAlS₂. The determined lattice parameters (a and c), elastic properties exhibit with the available data. The band structure and density of state indicates that CuAlS₂ exhibits semiconductor properties, characterized by a direct band gap measuring approximately 1.791 eV. The mechanical stability and optical properties of CuAlS₂ was calculated and analyzed. More >

View

8

Download

5

Open Access

ARTICLE

R. I. Jasim^a, E. H. Hadi^a, A. A. Mansour^b, S. A. Hussein^c, S. S. Chiad^a,*, N. F. Habubi^d, Y. H. Kadhim^e, M. Jadan^f,g
Chalcogenide Letters, Vol.22, No.1, pp. 43-55, 2025, DOI:10.15251/CL.2025.221.43
Abstract Using chemical bath deposition (CBD) methods and various molarities, nanostructured CdS thin films were developed. XRD assured that these films were cubic polycrystalline, containing larger grains as the solution's concentration of cadmium ions increased. Dislocation density values dropped from 79.32 to 62.90 as a result, nevertheless. Also, the strain is lowered from 30.88 to 27.50. AFM results demonstrate that these films suffer a decrease in the value of average particle size, root mean square, and roughness with the molarity concentration. SEM images show CdS thin films at various molarities (0.10, 0.15, 0.20) M, indicating reduced More >

View

8

Download

4

Open Access

ARTICLE

N. F. Rozi^a, L. Hasnimulyati^a, A. Azuraida^b,*
Chalcogenide Letters, Vol.22, No.1, pp. 57-76, 2025, DOI:10.15251/CL.2025.221.57
Abstract This paper studies on the theoretical ionizing radiation shielding parameter for the glass of {[(TeO₂)_0.7 (B₂O₃)_0.3]_0.7 [ZnO]_0.3}_1-x {CeO₂}_x by using two software; WinXCOM and PhyX software, which investigate the ability of cerium oxide. The investigation revealed that the 5CeZBTe glass sample, which included the greatest concentration of CeO₂ (0.05 mol), showed the greatest linear attenuation coefficient (LAC) and least values in Half Value Layer (HVL) and Mean Free Path (MFP). These results suggest that 5CeZBTe glass has significant potential as an alternative to traditional lead-based radiation shielding, offering a safer environment for both patients and healthcare professionals in More >

View

8

Download

5

Open Access

ARTICLE

H. R. Shakir^a, O. A. Chichan^b, M. S. Sada^c,*, S. A. Hussein^d, S. S. Chiad^e, N. F. Habubi^f, Y. H. Kadhim^g, M. Jadan^h,i
Chalcogenide Letters, Vol.22, No.1, pp. 77-89, 2025, DOI:10.15251/CL.2025.221.77
Abstract CdS, and CdS: Al were grown onto glass bases via Chemical spray pyrolysis (CSP). XRD analysis of CdS films indicates a polycrystalline hexagonal structure with a predominant orientation of the (101) plane. The strain decreased from 28.55 to 25.66, and the grain size of undoped CdS films was around (13.51–12.14) nm as Al content rose. According to the results of AFM, CdS, CdS:2% Al, and CdS:4% Al all exhibit smooth surfaces with decreasing particle size in the range of (78.46), (69.75), and (42.20) nm, respectively. The root-mean-square roughness values for CdS and CdS:4% Al were… More >

View

9

Download

6

Open Access

ARTICLE

S. Çelik^a,*, M. Temiz^b
Chalcogenide Letters, Vol.22, No.1, pp. 89-96, 2025, DOI:10.15251/CL.2025.221.89
Abstract In this study, PbZnS thin films with varying concentrations of lead (Pb) and zinc (Zn) were successfully produced using the spray pyrolysis method. The structural, optical and surface properties of the films were systematically investigated as a function of the Pb/Zn ratio. Xray diffraction (XRD) analysis confirmed the polycrystalline nature of the films, showing a cubic zinc blende structure with improved crystallinity as Pb content increased. Initially, with the increase in Pb concentration, larger crystallite sizes and decreased microstress were observed, but with the increase of Pb addition, the formation of secondary phases and the… More >

View

8

Download

4