Comparison Between Silver and Gold Nanoparticles Prepared by Pulsed Laser Ablation in Distilled Water
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Noble metals silver and gold nanoparticles were synthesized by pulsed laser ablation of silver and gold metal plates immersed in distilled water. In this work, the effect of the laser pulse fluence on the production of nanoparticles prepared by pulsed laser ablation is investigated. The synthesized nanoparticles are characterized by using X-ray diffraction, UV–Visible absorption spectroscopy, transmission electron microscopy, dynamic light scattering and room temperature photoluminescence. The UV–Visible absorption spectra of the nanoparticles show sharp absorptions in the visible regions due to surface plasmon resonance oscillations in noble metal nanoparticles. An enhancement in photoluminescence intensity is observed with increasing the laser fluence. It is found that all samples exhibit photoluminescence emission, at room temperature, in the UV–Visible region, due to the recombination of electrons with holes.
KeywordsAg nanoparticles Au nanoparticles Pulsed laser ablation Surface plasmon resonance Size distribution
Authors would like to acknowledge S. Tajmir and N. Mirghasemzadeh for their useful helps and assistance.
- 2.E. Messina, L. D’Urso, E. Fazio, C. Satriano, M. G. Donato, C. D’Andrea, O. M. Marago, P. G. Gucciardi, G. Compagnini, and F. Neri (2012). Tuning the structural and optical properties of gold/silver nano-alloys prepared by laser ablation in liquids for optical limiting, ultra-sensitive spectroscopy, and optical trapping. J. Quant. Spectrosc. Radiat. Transfer 113, 2490–2498.CrossRefGoogle Scholar
- 7.M. Quinten; Optical Properties of Nanoparticle Systems, Wiley-VCH Verlag & Co. KGaA, Boschstr. 12, 69469 Weinheim, Germany, 2011.Google Scholar
- 15.S. A. Maier, Plasmonics: Fundamentals and Applications, Springer Science + Business Media LLC, Library of Congress Control Number: 2006931007, 2007.Google Scholar
- 25.T.S.T. Amran, Md. R. Hashim, N.K. Ali Al-Obaidi, H. Yazid, R. Adnan, Optical absorption and photoluminescence studies of gold nanoparticles deposited on porous silicon, Nanoscale Res. Lett., (2013) 8 35.Google Scholar