Hameed H. Ahmed¹, Thaer A. Mezher^2,*, Marwan R. Rashid³

Chalcogenide Letters, Vol.22, No.12, pp. 1055-1066, 2025, DOI:10.15251/CL.2025.2212.1055 - 10 December 2025

Abstract Laser ablation in liquids (LAL), a hygienic and effective method for creating high-purity nanomaterials, was used in this study to create cadmium sulfide (CdS) and silver oxide (Ag₂O) nanoparticles. The sputtering process was used to deposit the produced nanomaterials on porous silicon (PSi) substrates, and a number of assays were used to examine the samples’ structural, optical, and electrical characteristics. The CdS sample had a hexagonal crystal structure, according to X-ray diffraction (XRD) data, whereas the AgO sample had a cubic structure. The diameters of the nanoparticles in the two samples ranged from 22.64 nm for… More >

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 >

Liaofei Yin^1,*, Kexin Zhang¹, Tianjun Qin¹, Wenhao Ma¹, Yi Ding¹, Yawei Xu^2,*

Frontiers in Heat and Mass Transfer, Vol.23, No.3, pp. 751-764, 2025, DOI:10.32604/fhmt.2025.067385 - 30 June 2025

Abstract Flow boiling in open microchannels offers highly efficient heat transfer performance and has attracted increasing attention in the fields of heat transfer and thermal management of electronic devices in recent years. However, the continuous rise in power density of electronic components imposes more stringent requirements on the heat transfer capability of microchannel flow boiling. HFE-7100, a dielectric coolant with favorable thermophysical properties, has become a focal point of research for enhancing flow boiling performance in open microchannels. The flow boiling heat transfer performance of HFE-7100 was investigated in this study by fabricating micro-nano composite structures… More >

S. A. Kamil^a,b,*, G. Jose^c

Chalcogenide Letters, Vol.21, No.1, pp. 11-20, 2024, DOI:10.15251/CL.2024.211.11

Abstract Er³⁺-ions doped SiO₂-ZnO-Na₂O thin films were fabricated using ultrafast laser plasma doping (ULPD) techniques under different ambient atmospheres; vacuum, nitrogen, oxygen and argon gas. The thickness of the layer produced depends on the ambient atmosphere during fabrication. The layer fabricated under a vacuum is the thinnest among all of the samples. In addition, the surface layer for the sample fabricated under a vacuum environment seems to be relatively smoother compared with those of the others. XRD patterns show that all samples are in a mixed amorphous-crystalline phase. All the Raman spectra exhibited a similar pattern, except More >

A. M. Kadim^*, M. K. Abid

Chalcogenide Letters, Vol.21, No.4, pp. 327-333, 2024, DOI:10.15251/CL.2024.214.327

Abstract Zinc telluride (ZnTe) nanocrystals (NCs) have generated the interest of researchers as an electrode material in hybrid light emitting devices (HLEDs) due to its potentially high capacity. However, due to the restricted fundamental charging capacity of the electrode materials, the available energy of existing nanomaterial light emitting devices remains enough for a wide range of applications. In this research, ZnTe nanocrystals were synthesized using Nd: YAG laser at energy 600 mJ by 150 pulse number to form a battery device out of ITO/ZnTe/TPD/Ni. The spectra of the ZnTe NCs were assessed using ultraviolet-visible (UV-VIS) and More >

H. R. Hassan, A. N. Abd^*, M. J. M. Ali

Chalcogenide Letters, Vol.21, No.11, pp. 855-866, 2024, DOI:10.15251/CL.2024.2111.855

Abstract Using a laser energy of no more than 600 mJ/pulse and a maximum of 500 pulses, this work selectively produced pure copper, indium, gallium, and selenide (CIGS) NPs using a laser ablation method with distilled water and n-type porous silicon prepared by the photoelectron etching method. The material exhibits quantum dot behavior, according to experimental investigations. Porous silicone bases were produced using a current density of 10 mA/cm2 and an etching time of 15 min. Tests XRD, SEM, AFM, FTIR, UV, PL were conducted for the porous silicone and CIGS NPs to ensure that each More >

A. S. Ahmed^*, A. B. Sharba, Q. M. Salman

Chalcogenide Letters, Vol.21, No.12, pp. 989-999, 2024, DOI:10.15251/CL.2024.2112.989

Abstract This work presents the synthesis and characterization of Homophase CdS and Heterophase Fe/CdS nanoparticles prepared by pulsed laser ablation (PLA) in water and methanol using nanosecond duration Nd:YAG laser. The morphology, the crystalline state, and the structure of the products were examined by performing SEM, XRD, and FTIR measurements, respectively. The results showed the transformation of the crystalline phase and changing the clustering size of CdS nanoparticles when performing PLA in methanol and water. Fe/CdS Heterojunctions were obtained in both liquids. The presence of Fe nanoparticle imposed another phase transformation and significantly improved the aggregation More >

Michelle K. Li, Orlando Diaz, Jonathan E. Katz

Canadian Journal of Urology, Vol.31, No.2, pp. 11861-11863, 2024

Abstract Standard treatment approaches for localized prostate cancer remain limited to active surveillance, radiotherapy, and radical prostatectomy. We present a case of transition zone prostate cancer that was treated with holmium laser enucleation of the prostate, a procedure that is normally reserved for the management of benign prostatic hyperplasia. More >

Ruaa H. Abbas¹, A. Kadhim^1,*, Azhar M. Haleem²

Journal of Renewable Materials, Vol.11, No.5, pp. 2109-2123, 2023, DOI:10.32604/jrm.2023.025112 - 13 February 2023

Abstract Copper oxide nanoparticles (CuO NPs) were synthesised with laser ablation of a copper sheet immersed in deionized water (DW), cetrimonium bromide (CTAB), and sodium dodecyl sulphate (SDS), respectively. The target was irradiated with a pulsed Nd: YAG laser at 1064 nm, 600 mJ, a pulse duration of 10 ns, and a repetition rate of 5 Hz. The CuO NPs colloidal were analyzed using UV–Vis spectroscopy, the Fourier transform infrared (FTIR) spectrometer, zeta potential (ZP), X-ray diffraction (XRD), transmission electron microscope (TEM) and field emission scanning electron microscopy (FESEM). The absorption spectra of CuO NPs colloidal… More >

Portia Thurmond¹, Sanchita Bose², Lori B. Lerner^1,2

Canadian Journal of Urology, Vol.23, No.4, pp. 8356-8362, 2016

Abstract Introduction: Holmium laser ablation of the prostate (HoLAP) is a surgical approach for treatment of benign prostatic hyperplasia (BPH). Limited evidence suggests laser ablation/vaporization is inferior to enucleation with respect to reoperation rates. Our objective was to determine if properly performed laser ablation results in outcomes similar to enucleation.
Materials and methods: A total of 198 patients with moderate to severe lower urinary tract symptoms and/or acute urinary retention had holmium laser enucleation of the prostate (HoLEP) or HoLAP between 2008 and 2014. Patients with metastatic prostate cancer, prior pelvic radiation, or bladder cancer involving the bladder… More >