Preparation of Nanoparticles by Laser Ablation on Copper Target in Distilled Water
Preparation of nanoparticles by pulsed Nd:YAG (1064 nm) laser ablation on copper target submerged in distilled water has been studied. Effects of pulse power and liquid height were investigated. Colloidal nanoparticles were characterized by UV-Vis spectroscopy, Raman dynamic light scattering and transmission electron microscopy. The concentration of nanoparticles was increased with the pulse power at a particular liquid height or volume. The size of nanoparticles related complicatedly to both parameters. The optimum conditions were the pulse power of 80 W and the liquid height of 3-4 mm. The obtained mean particle size was 20-37 nm, having the maximum UV-Vis absorption wavelength at 617-630 nm. The colloids contained mainly copper oxide nanoparticles.
S. Suttiruengwong and W. Sricharussin
H. L. Aye et al., "Preparation of Nanoparticles by Laser Ablation on Copper Target in Distilled Water", Advanced Materials Research, Vols. 93-94, pp. 83-86, 2010