Fabrication of Ag Nanoparticles Colloids by Pulsed Laser Ablation in Liquid

Abstract:

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Ag nanoparticles colloids have been fabricated by pulsed laser ablation in various liquids. The particle size, morphology and absorption spectroscopy of the obtained nanoparticles colloids were characterized by ultraviolet to visible (UV-Vis) spectrophotometer and transmission electron microscopy (TEM), the average diameter and its distribution were analyzed by Image-ProPlus software. The results showed that the Ag nanoparticles with best characterization are those produced at the repetition rate of 10Hz and laser fluence of 4.2J/cm2 by ablating for 7.5min in the distilled water, with the least average diameter(D=14.48 nm), the narrowest distribution of particles size (=25.8 nm) and more homogeneous morphologies. The effects of experimental conditions on the silver nanoparticles colloid can be explained by fragmentation and melting induced aggregation of colloidal particles by self-absorption of laser pulses.

Info:

Periodical:

Advanced Materials Research (Volumes 123-125)

Edited by:

Joong Hee Lee

Pages:

675-678

DOI:

10.4028/www.scientific.net/AMR.123-125.675

Citation:

B. Xu and R. G. Song, "Fabrication of Ag Nanoparticles Colloids by Pulsed Laser Ablation in Liquid", Advanced Materials Research, Vols. 123-125, pp. 675-678, 2010

Online since:

August 2010

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$35.00

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