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Gold nanoparticles synthesized by laser ablation in deionized water

Gold nanoparticles were prepared by the pulsed laser ablation of high purity gold bulk immersed in deionised water. Pulses of a Q-switched Nd:YAG laser (fundamental wavelength, 1064 nm; laser fluence, 15 J/cm2; pulse duration, 8 ns) were employed to irradiate the gold surface during the ablation pro...

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Main Authors: Al-Azawi, Mohammed A., Bidin, Noriah
Format: Article
Published: Physical Society of the Republic of China 2015
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/55501/
http://dx.doi.org/10.6122/CJP.20150511B
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spelling my.utm.555012017-02-15T04:47:00Z http://eprints.utm.my/id/eprint/55501/ Gold nanoparticles synthesized by laser ablation in deionized water Al-Azawi, Mohammed A. Bidin, Noriah QC Physics Gold nanoparticles were prepared by the pulsed laser ablation of high purity gold bulk immersed in deionised water. Pulses of a Q-switched Nd:YAG laser (fundamental wavelength, 1064 nm; laser fluence, 15 J/cm2; pulse duration, 8 ns) were employed to irradiate the gold surface during the ablation process. The effects of the thickness of the liquid layer and the post-ablative modification processes on ablation efficiency, size, and aggregation of gold nanoparticles were investigated. The experimental conditions that yielded the maximum ablation efficiency were determined. The average size and redistribution of nanoparticles were controlled by the subsequent treatment of the ablated colloid solution with a combination of 1064 and 532 nm pulses. The effects of post-ablation under laser-induced nanoparticles modification reduced the average particle size from 15.12 nm to 9.5 nm; the size distribution was also narrowed with 532 nm pulses. The results of UV-Vis spectrophotometer and transmission electron microscopy were exploited to characterize the optical spectra of gold colloidal solutions as well as to analyze the final shape and particle size distribution, respectively Physical Society of the Republic of China 2015-08 Article PeerReviewed Al-Azawi, Mohammed A. and Bidin, Noriah (2015) Gold nanoparticles synthesized by laser ablation in deionized water. Chinese Journal of Physics, 53 (4). ISSN 0577-9073 http://dx.doi.org/10.6122/CJP.20150511B DOI:10.6122/CJP.20150511B
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QC Physics
spellingShingle QC Physics
Al-Azawi, Mohammed A.
Bidin, Noriah
Gold nanoparticles synthesized by laser ablation in deionized water
description Gold nanoparticles were prepared by the pulsed laser ablation of high purity gold bulk immersed in deionised water. Pulses of a Q-switched Nd:YAG laser (fundamental wavelength, 1064 nm; laser fluence, 15 J/cm2; pulse duration, 8 ns) were employed to irradiate the gold surface during the ablation process. The effects of the thickness of the liquid layer and the post-ablative modification processes on ablation efficiency, size, and aggregation of gold nanoparticles were investigated. The experimental conditions that yielded the maximum ablation efficiency were determined. The average size and redistribution of nanoparticles were controlled by the subsequent treatment of the ablated colloid solution with a combination of 1064 and 532 nm pulses. The effects of post-ablation under laser-induced nanoparticles modification reduced the average particle size from 15.12 nm to 9.5 nm; the size distribution was also narrowed with 532 nm pulses. The results of UV-Vis spectrophotometer and transmission electron microscopy were exploited to characterize the optical spectra of gold colloidal solutions as well as to analyze the final shape and particle size distribution, respectively
format Article
author Al-Azawi, Mohammed A.
Bidin, Noriah
author_facet Al-Azawi, Mohammed A.
Bidin, Noriah
author_sort Al-Azawi, Mohammed A.
title Gold nanoparticles synthesized by laser ablation in deionized water
title_short Gold nanoparticles synthesized by laser ablation in deionized water
title_full Gold nanoparticles synthesized by laser ablation in deionized water
title_fullStr Gold nanoparticles synthesized by laser ablation in deionized water
title_full_unstemmed Gold nanoparticles synthesized by laser ablation in deionized water
title_sort gold nanoparticles synthesized by laser ablation in deionized water
publisher Physical Society of the Republic of China
publishDate 2015
url http://eprints.utm.my/id/eprint/55501/
http://dx.doi.org/10.6122/CJP.20150511B
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score 13.211869

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