Fluorescent gold nanoparticles produced by femtosecond laser ablation with CTAB as a surfactant

Mushtaq A. Sobhan*, Michael J. Withford, Ewa M. Goldys

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Femtosecond laser ablation of gold in an aqueous solution of biologically compatible surfactant cetyl trimethylammonium bromide (CTAB) is shown to produce small nanoparticles with a narrow size distribution. The average size of the nanoparticles produced in 0.1 and 1 mM CTAB was found to the 5 3 nm, compared with 10 6 nm obtained in deionized water under the same ablation conditions. Moreover, they were also strongly fluorescent, with a broad emission band peaking at around 350 nm for optimized excitation at 290 nm. The emission was blue shifted compared to 410 nm peak for nanoparticles ablated in water.

Original languageEnglish
Title of host publicationICONN 2010 - Proceedings of the 2010 International Conference on Nanoscience and Nanotechnology
EditorsAndrew Dzurak
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages14-16
Number of pages3
ISBN (Print)9781424452620
DOIs
Publication statusPublished - 2010
Event2010 3rd International Conference on Nanoscience and Nanotechnology, ICONN - 2010 - Sydney, Australia
Duration: 22 Feb 201026 Feb 2010

Other

Other2010 3rd International Conference on Nanoscience and Nanotechnology, ICONN - 2010
CountryAustralia
CitySydney
Period22/02/1026/02/10

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