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. W. Jo^†, I. H. Kim^†, Y. J. Jeong^*

Chalcogenide Letters, Vol.22, No.3, pp. 189-196, 2025, DOI:10.15251/CL.2025.223.189

Abstract Copper selenide has emerged as a promising thermoelectric material due to its unique structural properties and tunable electronic band structure. However, its practical application is hindered by its relatively high thermal conductivity. In this study, we report on the turning of thermal conductivity and thermoelectric energy conversion by preparing a hybrid composite material including nano- and micro-sized Cu₂Se. By employing a hydrothermal synthesis method with cetyltrimethylammonium bromide (CTAB) as a surfactant, we successfully synthesized nano-sized Cu_₂Se particles with uniform size distribution. The incorporation of these nano-sized particles with micro-sized Cu₂Se resulted in a significant reduction in More >

C. B. Cui^a,b, G. C. Yang^b, Z. Zhang^a,, X. J. Wang^c,

Chalcogenide Letters, Vol.22, No.6, pp. 507-520, 2025, DOI:10.15251/CL.2025.226.507

Abstract This research introduces an innovative aptasensor for detecting alpha-fetoprotein with exceptional sensitivity and specificity, employing a novel MoS₂/Fe₃O₄ composite fabricated through an advanced in-situ growth methodology. The composite exhibited a hierarchical flower-like structure with uniformly distributed Fe3O4 nanoparticles, confirmed by SEM, XRD, and Raman spectroscopy. The MoS₂/Fe₃O₄ composite demonstrated a 66% increase in surface area (7.16 m^²/g) compared to pristine MoS2, enhancing aptamer immobilization and electron transfer efficiency. Electrochemical characterization revealed a significant increase in interfacial resistance upon AFP binding, with a detection limit of 0.3 pg/mL and a dual linear range of 0.001–0.1 ng/mL and 0.1–100 More >

T. L. Yang^a, P. Y. Lin^b, Y. S. Fu^c, C. Y. Luo^c, K. C. Hsu^a,*

Chalcogenide Letters, Vol.22, No.7, pp. 625-636, 2025, DOI:10.15251/CL.2025.227.625

Abstract In this study, high-crystallinity zinc sulfide (ZnS) at the nanoscale was synthesized using a combination of electrospinning and hydrothermal techniques. Initially, polyvinyl butyral (PVB)/ZnS composite nanofibers were fabricated via electrospinning. Subsequently, a hydrothermal reaction was employed to induce a dissolution-recrystallization mechanism, enabling the gradual formation of highly crystalline ZnS nanoparticles. The structural, morphological, and compositional characteristics of the ZnS nanoparticles were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS). Finally, the photocatalytic activity of three different ZnS materials—synthesized via electrospinning, hydrothermal treatment, and hydrothermal-assisted electrospinning—were More >

D. A. Adu-Boadu^a, M. Paal^a, M. B. Mensah^b, I. Nkrumah^a,*, R. Y. Tamakloe^a, F. K. Ampong^a, R. K. Nkum^a, F. Boakye^a

Chalcogenide Letters, Vol.22, No.7, pp. 603-614, 2025, DOI:10.15251/CL.2025.227.603

Abstract Cd_1-xPb_xSe (0≤ x ≤ 1) thin films with values of x = 0, 0.2, 0.4, 0.5 and 1, have been deposited by chemical bath technique for photovoltaic application. The deposition temperature, time and pH of the reactive solutions were 80℃, 150 min and 11 respectively. The XRD results confirmed the polycrystalline nature of all the films. It also showed that all the films exist in face centered cubic structures. There were no pure phases of CdSe and PbSe identified in the XRD results of the ternary compounds. The average grain sizes determined for each sample were… More >

Y. Arooj^a, A. Farhan^b, S. Maqsood^a,c, A. Erum^a, M. Ishaq^d, S. Rafique^a, A. Khalid^b, F. Wazahat^a, M. A. Qamar^e,*

Chalcogenide Letters, Vol.22, No.8, pp. 707-717, 2025, DOI:10.15251/CL.2025.228.707

Abstract Chemical co-precipitation synthesis was used to make pure and zirconium-doped cobalt sulfide (Co3S4) nanoparticles (NPs). Important characterizations such as FTIR, UV-VIS, Raman, PL, SEM, XRD, and four probe methods were used to examine the influence of the Zr (0%, 5%, 10%, 15%, and 20%) doping on optical, electrical, structural, and thermoelectric characteristics of Co₃S₄ NPs. X-ray diffraction and SEM examination verified the cubic structure and grain size of pure and Zr-doped Co₃S₄-NPs. The FTIR spectrum revealed the rotational and vibrational modes linked to the material's surface. The material is optimal for photocatalytic activity with a redshift More >

Q. Fei^1,*, B. Jin², B. C. Jiang³, J. S. Huang⁴, L. Li⁵

Chalcogenide Letters, Vol.22, No.8, pp. 693-705, 2025, DOI:10.15251/CL.2025.228.693

Abstract An innovative hybrid nanostructure composed of diketopyrrolopyrrole (DPP) oligomers and cadmium sulfide (CdS) nanoparticles was developed to enhance the efficiency of organic– inorganic photovoltaic devices. The DPP-CdS hybrids were synthesized via a solution-phase mixing method, resulting in uniform nanoparticle dispersion along polymer fibrils and strong interfacial coupling. Structural characterization confirmed the coexistence of crystalline CdS domains and partially ordered DPP phases, while spectroscopic analyses indicated notable redshifts and band broadening, evidencing electronic interactions at the interface. The hybrid material displayed significantly broadened light absorption across the 400–700 nm range and an optimized optical bandgap of… More >

S. R. Ahmed^a,*, M. V. V. K. Srinivas Prasad^b, K. Keerthivasan^c

Chalcogenide Letters, Vol.22, No.8, pp. 679-691, 2025, DOI:10.15251/CL.2025.228.679

Abstract This work used a sonication-aided approach to make Cadmium sulfide nanoparticles and Nitrogen-doped CdS nanoparticles. Doping Nitrogen into CdS NPs enhances the material's electrical, chemical, and structural properties by altering its surface area and functional sites. XRD, FTIR, SEM/EDX, TGA, UV-Vis, and PSA are used to evaluate the characteristic features of CdS NPs. The photovoltaic responses of the prepared CdS and CdS-N NPs were evaluated by electrochemical impedance and IV analysis. The obtained XRD data confirms that nitrogen doping significantly changes the crystal size of CdS NPs. The XPS spectrum depicts the presence of trace More >

F. T. Ibrahim^1,*, A. A. Qassim², S. M. A. Al-Dujayli¹

Chalcogenide Letters, Vol.22, No.11, pp. 929-937, 2025, DOI:10.15251/CL.2025.2211.929

Abstract This work, pulse laser deposition technique was employee to synthesize Cu2ZnSnS4 (CZTS) thin films with different lasing energy (500, 600, 700, 800, 900 mJ). Through using different characterization technique to study structural, optical and gas sensing properties. the use of X-ray diffraction, the samples have polycrystalline with cubic structure. The EDX examination showed that the sample contains a suitable amount of Zn, Sn, Cu, and S atoms to form CZTS. UV-VIS measurement indicates that the synthesis of thin films employing a lower laser energy result in a drop in deposit sample thickness, which in turn More >

A. B. Rzayeva^1,2,*, F. E. Abbdullayeva¹, S. C. Imanova¹, S. H. Aliyeva^1,2, S. N. Yasinova^1,2

Chalcogenide Letters, Vol.22, No.11, pp. 965-970, 2025, DOI:10.15251/CL.2025.2211.965

Abstract Lead indium selenide (PbIn2Se₄) is a promising chalcogenide semiconductor for optoelectronic and energy applications. We report a hydrothermal synthesis route using ethylene glycol under moderate conditions (433– 453 K, 7–12 h), yielding up to 85–87%. The product crystallized into a cotton-like morphology composed of nanoand microparticles. Structural and compositional integrity were confirmed by chemical analysis, thermogravimetric analysis, and transmission electron microscopy. These results demonstrate that hydrothermal synthesis provides an efficient and controllable pathway to high-purity PbIn2Se₄, opening opportunities for its use in advanced functional devices. More >