Structural optical and morphological properties of copper oxide nanoparticles ablated using pulsed laser ablation in liquid

• Published in: Journal of optics (New Delhi) 2024-07, Vol.53 (3), p.1936-1945
• Main Authors: Kudhur, Azzam Y., Salim, Evan T., Kara, Ilker, Fakhri, Makram A., Mahdi, Rana O.
• Format: Article
• Language: English
• Subjects: Lasers; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Research Article
• ISSN: 0972-8821; 0974-6900
• DOI: 10.1007/s12596-023-01331-6

In this study, copper oxide nanoparticles have been produced utilizing a high-purity copper target and a conventional laser system with two separate pulsed laser wavelengths (1064 and 532 nm), which have not been explored in previous works. Physical properties of these wavelengths have been studied. Measurements were made of the particle size, shape, and size distributions. XRD (X-ray diffraction) analyses indicated that the nanofilms were deposited at 1064 nm and are cubic structures with discrimination along the (110) direction. Transmission electron microscopy (TEM) was used to examine nanoparticles with sizes ranging from 76 to 57.5 nm. UV spectroscopy was utilized to determine the optical characteristics of the colloidal solution. The material seems to have a modest UV-VIS spectrum. The flour peak is around 590 nm, which indicates the formation of Cu 2 O nanoparticles. The indirect bandgap (2.36–2.2 eV), respectively, exhibits a pronounced red shift. These nanoparticles are most likely the result of quantum confinement processes at nanoscales.