Pulse Duration Effect of Laser Ablation on the Morphology Properties of Gold Nanoparticles Deposited on Porous Silicon
| Authors | A.A. Sulaiman1 , T.A. Aswad2, I.B. Karomi3, S.A. Najim1 |
| Affiliations |
1University of Mosul, College of Science, Department of Physics, 41002 Mosul, Iraq 2The Directorate General of Education in Salah Al-Deen, Iraq. 3University of Mosul, College of Education for Pure Science, 41002 Mosul, Iraq |
| Е-mail | suhaabdullah@uomosul.edu.iq |
| Issue | Volume 17, Year 2025, Number 2 |
| Dates | Received 28 January 2025; revised manuscript received 18 April 2025; published online 28 April 2025 |
| Citation | A.A. Sulaiman, T.A. Aswad, I.B. Karomi, и др., J. Nano- Electron. Phys. 17 No 2, 02012 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(2).02012 |
| PACS Number(s) | 73.43. − f, 74.25.fc, 78.30. − j |
| Keywords | Gold nanoparticles (2) , Laser pulse width, Morphology (8) , SEM (118) , EDS (6) , XRD (97) . |
| Annotation |
Gold nanoparticles recently gaining vast attention owing to their wide range of applications in optical, catalytic, mechanical, and electronic fields. Due to the simplicity approach of generating nanoparticles and free of contamination, laser ablation in liquids is extensive used to yield varied types of nanoparticle structures, including quantum dot, quantum wire, carbon nanotube and core shell nanoparticles. Herein, we report the morphology properties of a gold (Au) nanoparticles prepared by laser ablation in a liquid at different pulse duration (i.e., 300, 30, and 3 ns). The Au nanostructures were then deposited on the PSi layer, prepared by electrochemical etching technique. The samples were characterized by means of SEM, EDS, AFM, and XRD procedures. Results confirmed the formation of the FCC Au nanoparticles structures in nano-scale with pseudo-spherical shapes. The reduction of the pulse width of the ablated laser revealed major effects on the AuNPs, where the average size of them significantly decreases and the homogeneity of the nanoparticles increases as well as an improvement in the samples roughness was recorded. Thus, controlling the pulse width duration can produce specific morphology properties AuNPs for particular applications. |
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List of References |
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