Abstract
Synthesis of copper nanoparticles has been conducted by using a pulse laser ablation method utilizing a pulse Nd:YAG laser. Experimentally, a pulse Nd: YAG laser (1064 nm, 50 mJ) was focused on a pure copper metal placed in aquades. Colloidal copper nanoparticles have been successfully synthesized. The effect of laser pulse repetition rate was also examined using 10, 15, and 20 Hz. The colloidal nanoparticles were then characterized by using UV-Vis spectrometry and scanning electron microscopy. The result shows that the copper nanoparticles was sucesfully produced with the sphere shape and averaged diameter of 12 nm.
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