PROF. DR. AZMI ZAKARIA ,   DR.  REZA ZAMIRI

Department of Physics, Innovation and Commercialization Center (ICC)

Faculty of Science, UPM-University Putra Malaysia 43400 UPM

azmizak@fsas.upm.edu.my

In this project we used a laser ablation technique for preparation of silver nanoparticles. The fabrication process was  carried out by ablation of a silver plate immersed in palm oil. A pulsed Nd:YAG laser at a wavelength of 1064 nm was used for ablation of the plate at different times. The  palm oil allowed formation of nanoparticles with very small and uniform particle size, which are dispersed very homogeneously within the solution. The obtained particle sizes for 15 and 30 minute ablation times were 2.5 and 2 nm, respectively. Stability study shows that all of the samples remained stable for a reasonable period of time.