A New Route for Mass Production of Uniform Metal Nanoparticles in Water by Means of Laser Light Induced Processes
Authors: Vogel, Florian; Träger, Frank; Hubenthal, Frank
Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 3, March 2011 , pp. 2368-2375(8)
Publisher: American Scientific Publishers
Abstract:In this contribution, we report a new route for mass fabrication of metal nanoparticles with monodisperse shape and narrow size distribution in water applying exclusively physical processes. For this purpose, we have combined pulsed laser ablation with the technique of selective laser tailoring. For example, pulsed laser ablation from a gold plate in water results in a large amount of nanoparticles with radii in the range of R = 75 nm with a relatively broad size distribution of σ = 31%. This broad size distribution has been subsequently narrowed in a single irradiation step to σ = 20% without a significant change of the mean nanoparticle radius utilizing selective laser tailoring. The main advantage of the laser based process, besides rapid processing, is that no chemicals, which are undesired for many applications, are necessary. Hence, mass production of nanoparticles with narrow size and monodisperse shape distribution in water becomes feasible.
Document Type: Research article
Publication date: 2011-03-01
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