Effect of Laser Wavelengths on the Silver Nanoparticles Size Prepared by PLAL | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 34, 7A, July 2016, Pages 1324-1334 PDF (1.28 M) | ||
| DOI: 10.30684/etj.34.7A.6 | ||
| Authors | ||
| Mohammed J. Haider; Mohammed S. Mahdi | ||
| Abstract | ||
| In this present study, Pulsed Laser Ablation in Liquid (PLAL) experiment setup for synthesis colloidal solution of silver-NPs. The laser system was used in this study, a (Nd-YAG) nanosecond laser system with optimal pulse duration of 10 ns and repetition rate 1-6 Hz. The Laser wavelengths were: 1064 nm, 532 nm and 355 nm. The spot size of the laser beam on the surface of metal plate was varied in the range of 1.4-1.5 mm in diameter by changing the distance between the focusing lens and the metal plate.The ablation process was typically done for 1 minute. The average particle size has been characterized by TEM, SEM and UV-Vis investigation. From morphologyresults for colloidal silver nanoparticles images were spherical shape and average size of the particles is 55-60 nm at wavelength (λ =1064 nm), average size of the particles is 35-40 nm at(λ =532 nm) and average size of the particles is 28 nm at(λ =355 nm). | ||
| Keywords | ||
| silver nanoparticles; PLAL; YAG Laser; SHG; THG | ||
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