H. K. Hassun^a,*, B. H. Hussein^a, B. K. H. Al-Maiyaly^a, R. H. Athab^a, Y. K. H. Moussa^b

Chalcogenide Letters, Vol.22, No.6, pp. 541-550, 2025, DOI:10.15251/CL.2025.226.541

Abstract Photoconductive possessions through the highly sensitive and responsive in lower applications apply voltages with a charge that effect the product for the photodetector utilizing Copper Sulfide was effective to fabricate and deposit by the means of thermal evaporation techniques following by the heat treatment with applications as the visible photodetector was described. Effects of doping to the antimony and aluminum on photo detectors property were estimated to be below illumination by the utilization of different power densities. The structure with the surface morphology properties was studied by XRD and AFM techniques, a clear effect of More >

D. M. A. Latiff, B. A. Ahmed, S. M. Ali, K. A. Jasim^*

Chalcogenide Letters, Vol.22, No.6, pp. 521-528, 2025, DOI:10.15251/CL.2025.226.521

Abstract In this paper, the effect of sulfur substitution by arsenic on the structural, optical properties of thin films of the trivalent chalcogenide Se₆₆S_44-xAs_x at different concentrations (where x = 0, 8, 16, and 24 at %) was studied. Thin films with a thickness of (300±10 nm) were prepared using thermal evaporation of bulk samples. Structural examinations were performed using XRD and AFM techniques. All the studied film samples were amorphous in structure and the intensity of the crystalline parts was high in the range of 10-40. Also, in Atomic Force Microscopy (AFM). It was found that… More >

Alexander A. Fedorets¹, Eduard E. Kolmakov¹, Anna V. Nasyrova¹, Dmitry N. Medvedev¹, Vyacheslav O. Mayorov², Vladimir Yu. Levashov², Leonid A. Dombrovsky^1,3,*

Frontiers in Heat and Mass Transfer, Vol.23, No.4, pp. 1091-1102, 2025, DOI:10.32604/fhmt.2025.068244 - 29 August 2025

Abstract A new experimental method is developed to investigate the effect of dissolved substances on the evaporation rate of small water droplets suspended in the atmosphere. The laboratory setup is based on converting a generated droplet jet of complex structure into a directed flow of evaporating droplets falling in a vertical tube. Images of falling droplets captured by a high-speed camera through a window in the vertical channel wall are used to determine the sizes and velocities of individual droplets. The computational modeling of droplet motion and evaporation proved useful at all stages of the experimental… More >

Hanyi Zou^1,2,#, Xinye Xu^1,3,#, Mutian Yao¹, Baoyang Lu^1,*

Journal of Polymer Materials, Vol.42, No.2, pp. 339-358, 2025, DOI:10.32604/jpm.2024.057955 - 14 July 2025

Abstract The global scarcity of clean water is an escalating issue due to climate change, population growth, and pollution. Traditional water purification technologies, while effective, often require significant energy input and complex infrastructure, limiting their accessibility. This review explores the use of conjugated polymer hydrogels as a promising solution for solar water purification. Conjugated polymer hydrogels offer unique advantages, including high photothermal conversion efficiency, effective heat management, and rapid water transport, which are crucial for efficient solar-driven water evaporation. By leveraging the properties of these hydrogels, it is possible to significantly reduce the energy required for More >

Leonardo Di G. Sigalotti^*, Carlos A. Vargas

CMES-Computer Modeling in Engineering & Sciences, Vol.142, No.3, pp. 2281-2337, 2025, DOI:10.32604/cmes.2025.060497 - 03 March 2025

Abstract The evaporation of micrometer and millimeter liquid drops, involving a liquid-to-vapor phase transition accompanied by mass and energy transfer through the liquid-vapor interface, is encountered in many natural and industrial processes as well as in numerous engineering applications. Therefore, understanding and predicting the dynamics of evaporating flows have become of primary importance. Recent efforts have been addressed using the method of Smoothed Particle Hydrodynamics (SPH), which has proven to be very efficient in correctly handling the intrinsic complexity introduced by the multiscale nature of the evaporation process. This paper aims to provide an overview of… More > Graphic Abstract

Mariam Habouria¹, Sahbi Ouertani^1,*, Noura Ben Mansour², Soufien Azzouz¹, Mohamed Taher Elaieb³

Frontiers in Heat and Mass Transfer, Vol.23, No.1, pp. 345-360, 2025, DOI:10.32604/fhmt.2024.057387 - 26 February 2025

Abstract The aim of this paper was to characterize through experiment the moisture and temperature kinetic behavior of Eucalyptus gomphocephala wood samples using microwave heating (MWH) in two scenarios: intermittently and continuously. The mechanical properties and surface appearance of the heated samples were also investigated. Continuous and intermittent microwave drying kinetic experiments were conducted at a frequency of 2.45 GHz using a microwave laboratory oven at 300, 500, and 1000 watts. Drying rate curves indicated three distinct phases of MWH. Increasing the microwave power with a shorter drying time led to rapid increases in internal temperature and… More >

A. N. Abouelkhir^a,*, E. R. Shaaban^b,c, M. Tag El-Dine^a, K. I. Hussain^d, I. S. Yahia^e

Chalcogenide Letters, Vol.21, No.2, pp. 161-168, 2024, DOI:10.15251/CL.2024.212.161

Abstract Cadmium sulfide was prepared by first turning it into a powder, which was then used to evaporate heat to create thin films. Additionally, the spray pyrolysis method was used to produce films of cadmium sulfide. A structural comparison using the crystallize size and lattice parameters. Furthermore for the prepared samples, an analysis of their optical characteristics was conducted through measurements of absorbance, transmission, and reflection, resulting in the determination of the energy gap. 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 >

A. J. Soud, Bushra K. H. Al-Maiyaly

Chalcogenide Letters, Vol.21, No.5, pp. 385-394, 2024, DOI:10.15251/CL.2024.215.385

Abstract Copper Zinc Sulphide (Cu_0.5Zn_0.5S) alloy and thin films were fabricated in a vacuum. Nano crystallized (CZS) film with thick 450±20 nm was deposit at substrates glasses using thermal evaporation technique below ~ 2 × 10⁻⁵ mbar vacuum to investigated the films structural, morphological and optical properties depended on annealing temperatures ( as-deposited, 423, 523 and 623) K for one hour. The influences annealed temperature on structurally besides morphologically characteristics on these films were investigated using XRD and AFM respectively. XRD confirms the formation a mixed hexagonal phase of CuS-ZnS in (102) direction with polycrystalline in nature More >

B. K. H. Al-Maiyaly, S. M. Ali, B. H. Hussein, H. K. Hassun^*

Chalcogenide Letters, Vol.21, No.8, pp. 605-613, 2024, DOI:10.15251/CL.2024.218.605

Abstract Copper doped Zinc oxide and (n-ZnO / p-Si and n-ZnO: Cu / p-Si) thin films thru thickness (400±20) nm were deposited by thermal evaporation technique onto two substrates. The influence of different Cu percentages (1%,3% and 5%) on ZnO thin film besides hetero junction (ZnO / Si) characteristics were investigated, with X-ray diffractions examination supports ZnO films were poly crystal then hexagonal structural per crystallite size increase from (22.34 to 28.09) nm with increasing Cu ratio. The optical properties display exceptional optically absorptive for 5% Cu dopant with reduced for optically gaps since 3.1 toward More >