G. Hao^*, Z. Chen, R. Xian, W. Yifan

Chalcogenide Letters, Vol.22, No.3, pp. 255-260, 2025, DOI:10.15251/CL.2025.223.255

Abstract In present work, Cu₂BaSnS₄(CBTS) nanoparticles are reported solvothermally synthesized. The formation of single-phase trigonal structure of CBTS nanoparticles is confirmed by XRD and Raman spectroscopic analysis. SEM studies reveal that CBTS exhibits flower shaped structure self-assembling by nanosheets with uniform average thickness 30nm. CBTS materials show abroad absorption in the complete visible range, providing a band-gap value of 1.58eV, indicating potential applications in photocvoltaics. The excellent MB degradation efficiency of 93% under visible light within 100min is achieved, suggesting CBTS is a potential material for effective solar light photocatalytic application. Meanwhile, electrical properties are measured up More >

S. Saleem^a, U. Parveen^a, H. AL-Ghamdi^b,*, M. Yaseen^a, I. Sajjad^a, Nasarullah^a

Chalcogenide Letters, Vol.22, No.3, pp. 223-237, 2025, DOI:10.15251/CL.2025.223.223

Abstract Present research reveals the doping effect on physical properties of Sr_1-xFe_xS by employing ab-initio calculations. The negative formation energy and optimization outcomes exhibit the stability of the Sr_1-xFe_xS alloys with ferromagnetic phase. Spin dependent band structure (BS) and density of states (DOS) interpret that Sr_1-xFe_xS revealed half metallic ferromagnetic (HMF) nature at 6.25% and 12.5% of Fe doping while metallic character is revealed at 25% concentration of dopant. Spin-up state of Sr_0.9375Fe_0.0625S and Sr_0.8750Fe_0.1250S depicts semiconductive behavior with bandgap value of 2.01/2.33 eV, correspondingly, while metallic in spin-down channel. The magnetism in the system is mainly originated because… More >

F. Saker^a,*, L. Remache^a, D. Belfennache^b, K. R. Chebouki^a, R. Yekhlef^b

Chalcogenide Letters, Vol.22, No.2, pp. 151-166, 2025, DOI:10.15251/CL.2025.222.151

Abstract In this work the chemical bath deposition (CBD) method was used to synthesize Cadmium sulphide (CdS) thin films on glass, silicon (Si), and porous silicon (PSi) substrates. The PSi substrates were prepared by an electrochemical etching method using different current densities at constant etching time of 5 minutes. The CdS thin films were characterized using the X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), optical transmittance spectroscopy in the Uv visible range, and electrical characterization (I–V characteristics). The obtained results demonstrated that the morphology of the deposited materials was influenced by the… More >

A. W. Jabbar^a, N. K. Abbas^b,*

Chalcogenide Letters, Vol.22, No.8, pp. 735-752, 2025, DOI:10.15251/CL.2025.228.735

Abstract Nanostructured CdS and CdS: Cu thin films were synthesized by pulsed laser deposition with a Nd: YAG laser of different energies, 0.1, 0.5, and 1 W. The number of pulses was 300, and the frequency was 20 kHz. The CdS nanoparticles were deposited on a glass substrate. The optical, structural, and morphological properties were investigated utilized X-ray diffraction, UV-Vis spectrophotometry, and field emission scanning electron microscopy. From 2.25 to 2.1 eV, the results demonstrate that the band gap energy reduces as laser energy increases. Morphological investigations reveal that the laser energy has a significant impact More >

Xiaocui Li¹, Fu-Rong Chen^1,*, Yang Lu^2,*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.1, pp. 1-1, 2025, DOI:10.32604/icces.2025.010503

Abstract Traditionally, it is relatively easy to process metal materials and polymers (plastics), while ceramic and inorganic semiconductor materials are hard to process, due to their intrinsic brittleness caused by directional covalent bonds or strong electrostatic interactions among ionic species. This brittleness can degrade semiconductor performance and lead to catastrophic failures, thereby limiting their application scenarios and service lifetime. Achieving room-temperature deformability in semiconductor materials without compromising their functionality has been a long-standing goal in materials science. Recently, room-temperature ductile semiconductors have emerged, with their deformability enhanced by factors such as size effects, fewer pre-existing micro-cracks,… More >

Yury V. Knyazev, Semyon T. Baidak, Yury I. Kuz’min, Alexey V. Lukoyanov^*

CMC-Computers, Materials & Continua, Vol.83, No.3, pp. 4085-4095, 2025, DOI:10.32604/cmc.2025.065091 - 19 May 2025

Abstract The work presents the electronic structure computations and optical spectroscopy studies of half-Heusler ScNiBi and YNiBi compounds. Our first-principles computations of the electronic structures were based on density functional theory accounting for spin-orbit coupling. These compounds are computed to be semiconductors. The calculated gap values make ScNiBi and YNiBi valid for thermoelectric and optoelectronic applications and as selective filters. In ScNiBi and YNiBi, an intense peak at the energy of −2 eV is composed of the Ni 3d states in the conduction band, and the valence band mostly contains these states with some contributions from the… More >

H. Guan^*, J. X. Xu, Z. Y. Yang, X. Y. Qian, M. Q. Zhao

Chalcogenide Letters, Vol.21, No.2, pp. 169-173, 2024, DOI:10.15251/CL.2024.212.169

Abstract Cu₂MgSnS₄ (CMTS) nanoparticles are successfully prepared via a solvothermal approach. X-ray diffraction (XRD) and Raman reveal that pure zinc-blende CMTS phase is obtained. Scanning electron microscopy (SEM) shows that CMTS nanoparticles exhibit microsphere structure. The band gap of as-obtained CMTS nanoparticles is calculated to be 1.68eV, indicating a potential candidate for tandem solar cells. The degradation rate of methylene blue (MB) with under visible-light irradiation is about 87%, indicating that CMTS can be useful for effective visible-light photocatalyst. More >

N. Kanwal^a, M. Ishfaq^a, S. A. Aldaghfag^b, S. Saleem^a, M. Yaseen^a,*

Chalcogenide Letters, Vol.21, No.1, pp. 53-63, 2024, DOI:10.15251/CL.2024.211.53

Abstract In this work, the electro-optical and magnetic characteristics of Be_1-xCr_xS (x= 6.25%, 12.5% and 25%) are brought into investigation by employing full potential linearized augmented plane wave (FP-LAPW) scheme designed within density functional theory (DFT). The stability of the Be_1-xCr_xS alloy is justified by the negative values of formation energy. The band structures and density of states are examined by using GGA functional. Be_1-xCr_xS compound demonstrates the half-metallic (HM) ferromagnetic behavior for all doping concentrations; spin-up channel reveals the metallic character and other spin version displays the semiconductor (SC) behavior. The values of total magnetic moment (µB) More >

S. Pal^a, D. Sharma^b, M. Chandra^c, M. Mittal^d, P. Singh^e, M. Lal^f, A. S. Verma^g,h,*

Chalcogenide Letters, Vol.21, No.1, pp. 1-9, 2024, DOI:10.15251/CL.2024.211.1

Abstract In this paper, we present thermodynamic properties such as heat of formation, heat of fusion and entropy of fusion for chalcopyrite structured solids with the product of ionic charges and nearest neighbour distance d (Å). The heat of formation (∆Hf) of these compounds exhibit a linear relationship when plotted on a log-log scale against the nearest neighbour distance d (Å), but fall on different straight lines according to the ionic charge product of the compounds. On the basis of this result two simple heat of formation (∆H_f)——heat of fusion (∆H^F), and heat of formation (∆H_f)——entropy of fusion… More >

G. Hao^*, S. Xuye, G. Tao, C. Lin

Chalcogenide Letters, Vol.21, No.6, pp. 475-482, 2024, DOI:10.15251/CL.2024.216.475

Abstract Cu₂CdSnS₄-CdS nanocomposites are successfully prepared via a two-step solvothermal approach. Powder X-ray diffraction (XRD), Scanning electron microscope (SEM), Photoluminescence (PL) spectroscopy and UV-Vis diffuse reflectance spectroscopy are used to characterized the Cu₂CdSnS₄-CdS nanocomposites. The results show that Cu₂CdSnS₄-CdS nanocomposites present nanoflower structure self-assembling by nanosheets with a thickness of ~50nm and spheroid structure with the average size of 100nm. The band gap is calculated to be 1.5eV. The photodegradation efficiency under visible-light irradiation is reached to 94%, the work provide a new strategy to prepare Cu₂CdSnS₄-CdS nanocomposites for high effective visible-light photocatalytic material. More >