Huixin Wei, Baopeng Liao^*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.34, No.1, pp. 1-1, 2025, DOI:10.32604/icces.2025.012367

Abstract Friction behavior at soft-hard material interfaces plays a pivotal role in applications spanning biomedical devices, robotics, and tactile systems. While theoretical frameworks and experimental characterization methods have advanced, it is still difficult to unravel interfacial mechanisms. In this study, a theoretical model is firstly developed to predict static-to-sliding transitions by analyzing geometric evolution and stick-slip dynamics at soft material interfaces. The model quantitatively determines the threshold force for slip initiation, offering predictive insights into The sliding behavior of the interface. Second, an innovative tribometry platform is introduced, combining synchronized optical visualization, mechanical loading, and automated 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 >

O. Mekhbi^a, K. Kamli^b,*, Z. Hadef^b, O. Kamli^c, M. Bouatrous^d, N. Houaidji^e, L. Zighed^h

Chalcogenide Letters, Vol.22, No.4, pp. 331-339, 2025, DOI:10.15251/CL.2025.224.331

Abstract This work presents a hybrid study that employs Ultrasonic Spray method for the deposition of SnS absorber films and SCAPS-1D simulation method for the analysis of various solar cell topologies. Different deposition times have been employed to optimize structural, optics, and electrical properties. To evaluate their potential as absorber layers for solar cells, the films were analyzed by using X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and tested for electrical performance. Complementary numerical simulations were carried out with SCAPS-1D in modeling ZnO:Al/i-ZnO/SnS₂/SnS solar cell structures. Results showed that optimized SnS thickness of 2.5 µm and high carrier More >

X. Y. Chen^a,b, Y. H. Cai^a, Y. S. Chen^c, S. J. Huang^b, M. H. Li^d, Y. H. Li^e, C. H. Lin^c, H. Chen^a,*

Chalcogenide Letters, Vol.22, No.9, pp. 777-785, 2025, DOI:10.15251/CL.2025.229.777

Abstract This study focuses on the development of zinc oxide (ZnO)/zinc sulfide (ZnS) core-shell structures on flexible polyethylene terephthalate (PET) substrates for enhanced light sensing. PET offers high elasticity, optical transparency, and chemical resistance, making it ideal for wearable optoelectronics. By optimizing the vulcanization process, a uniform ZnS shell is formed on the exposed regions of ZnO nanorods (NRs), significantly enhancing ZnO-based sensor’s sensitivity to visible light, especially red light (peak wavelength at 630 nm). Structural and spectral analyses confirm the successful formation of the ZnO/ZnS heterostructure, improved charge separation, and broadened light response. To improve More >

Akramjon Y. Boboev^1,*, Ulugbek R. Karimberdiev¹, Sardor R. Kadirov², Nuritdin Y. Yunusaliyev¹

Chalcogenide Letters, Vol.22, No.11, pp. 951-957, 2025, DOI:10.15251/CL.2025.2211.951

Abstract This paper investigates the possibility of growing solid solutions of the composition (Ge₂)_1−x−y(GaAs_1−δBi_δ)_x(ZnSe)_y on silicon substrates using a germanium (Ge) buffer layer. The optimal conditions for obtaining a structurally high-quality epitaxial layer have been determined. In the study, the solid solution was obtained by liquid-phase epitaxy from a bismuth-containing melt solution. Epitaxial growth was carried out in a palladiumpurified hydrogen atmosphere at a cooling rate of 1 ÷ 1.5°C/min in the temperature range 750 ÷ 650°C. Experimental data showed that the growth of the epitaxial film significantly depends on the size of the gap between the… More >

Yihang Tang¹, Jing Li¹, Wentao Xu¹, Yao Xiao¹, Jiayi Deng¹, Ge Rong¹, Jin Zhao², Song Xu¹, Man Zhou^1,*, Zhongyu Li^3,*

Journal of Renewable Materials, Vol.13, No.10, pp. 1993-2041, 2025, DOI:10.32604/jrm.2025.02025-0065 - 22 October 2025

Abstract Natural fibers, as a typical renewable and biodegradable material, have shown great potential for many applications (e.g., catalysis, hydrogel, biomedicine) in recent years. Recently, the growing importance of natural fibers in these photo-driven applications is reflected by the increasing number of publications. The utilization of renewable materials in photo-driven applications not only contributes to mitigating the energy crisis but also facilitates the transition of society toward a low-carbon economy, thus enabling harmonious coexistence between humans and the environment within the context of sustainable development. This paper provides an overview of the recent advances of natural… More > Graphic Abstract

Andreea Moldovan¹, Ioana Moldovan^2,*, Lukács Lehel², Antonia Odagiu³, Lucia Draghia⁴, Maria Cantor^1,*

Phyton-International Journal of Experimental Botany, Vol.94, No.9, pp. 2767-2779, 2025, DOI:10.32604/phyton.2025.069324 - 30 September 2025

Abstract Pelargonium zonale is an important ornamental and medicinal plant. The purpose of this investigation was to evaluate the effects of conventional and unconventional fertilization on variations in the physicochemical parameters of the culture substrate (temperature, pH, and electrical conductivity) in two cultivars of Pelargonium zonale (L.) L’Hér., grown in pots. This study was conducted under greenhouse conditions, using Pindstrup peat as the culture substrate. The analysis focused on how these physicochemical indicators of peat influenced plant height and development under fertilization conditions. Results revealed that in the ‘Tango Salmon’ cultivar, both fertilization regimes significantly modified substrate temperature… More >

Wenny Surya Murtius^1,2,*, Bambang Dwi Argo^3,*, Irnia Nurika¹, Sukardi¹

Journal of Renewable Materials, Vol.13, No.5, pp. 997-1020, 2025, DOI:10.32604/jrm.2025.02024-0004 - 20 May 2025

Abstract A stepwise pretreatment process for coconut dregs (CD) has been investigated to enhance availability of hemicellulose. Recently, lignocellulose-rich agricultural waste such as CD has garnered substantial attention as a sustainable raw material for producing value-added bio-products. To optimize the process variables within the stepwise pretreatment using Pulsed Electric Field (PEF) and Solid-State Fermentation (SSF), Response Surface Methodology (RSM) based on Central Composite Design (CCD) was employed. PEF, a non-thermal physical treatment, offers advantages such as low energy consumption and reduced processing times, while SSF utilizes Pleurotus ostreatus to promote biodegradation. A statistical model was constructed using… More > Graphic Abstract

A. A. Mansour^a, H. A. Salman^b, S. A. Abdul Wahab^c, N. F. Habubi^c, S. S. Chiad^d,*, Z. S. A. Mosa^c, Y. H. Kadhim^d

Chalcogenide Letters, Vol.21, No.3, pp. 275-284, 2024, DOI:10.15251/CL.2024.213.275

Abstract To grow SnS films, the spray pyrolysis deposition (SPD) process is applied. The films were deposited at various substrate temperatures (S_T) of 400, 450, and 500 degrees Celsius for two hours. Through XRD analysis, the impact of ST on the structure was investigated. Peak (113) crystallite sizes were 13.16, 21.48, and 38.87 nm, respectively, at base temperatures of (400, 450, and 500) ℃. The effect of ST on the structure was examined using XRD analysis. A predominat Peak at (113) plane. The crystallite sizes at base temperatures of (400, 450, and 500) ℃ were 13.16, 21.48, More >

G. S. Amirbekova^a, Zh. K. Tolepov^a,*, N. Guseinov^a, M. A. Tulegenova^a, T. Kuanyshbekov^b

Chalcogenide Letters, Vol.21, No.5, pp. 431-437, 2024, DOI:10.15251/CL.2024.215.431

Abstract Lead telluride nanostructures were obtained on silicon substrates by thermal evaporation in vacuum. Growth occurred at three different distances between the evaporation source and the substrate. The distances between the evaporator and the evaporation source were 5 cm; 7.5 cm and 10 cm. Structural characteristics were studied using XRD, SEM, EDX, AFM analyses. These methods provided information about the crystal structure, morphology, microstructure and elemental composition of the material. X-ray diffraction analysis showed that thin films of lead telluride obtained by thermal evaporation in vacuum have a cubic crystal structure. This experimental work was carried More >