Year: 2023
Type: dissertation
Abstract: The exceptional characteristics of one-dimensional zinc oxide (ZnO), which \nhas applications in electrical, electrochemical, electromechanical, and sensing devices, \nmake it one of the most promising nanostructures. At various continuous laser \nirradiation times of 20, 25, and 30 minutes, respectively, utilizing a simple and quick \nlaser-assisted chemical bath deposition (LACBD) method on glass substrates with a \nthree-hours post-annealing at 400 oC. Functional ZnO nanostructures known as micronanorods \nwith satisfactory structural, morphological, and optical properties were \ngrown on a glass substrate coated with various metal buffer layers of nickel (Ni), \ntitanium (Ti), using RF sputtering, and iron (Fe), using thermal evaporation. Variation \nin morphology analysis, crystallinity, and the optical spectra of reflectance, absorption, \nand transmission have been investigated, discussed, and connected with changes in \nlaser irradiation periods, respectively. The XRD patterns showed that the synthesized \nmaterial had a strong ZnO MRs (002) peak, a hexagonal wurtzite structure, and \nexhibited a preferred orientation along with the c-axis orientation for all the samples. \nThe crystallite grain size increased and was found to be in the range of 8.88 nm to \n12.16 nm for the samples using Ni, 4.772 nm to 11.955 nm for the samples using Ti, \nand 11.699 nm for the samples using Fe buffer layers, respectively. The energydispersive \nX-ray (EDX) analysis was used to identify the components and confirm that \nthe required composition was present.
Author: Lahewil, Abdulwahab Salem Zaroug
Language: English
Topic: ZnO doping and properties
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Funder: Universiti Sains Malaysia
OpenAlex ID: W7057684844