Preparation and Characterization of Copper Nanoparticles by Pulsed-Laser Deposition

Abstract

In this work nanostructured copper thin films were deposited on glass and silicon substrates by the pulsed-laser deposition (PLD) technique utilizing a Nd:YAG laser operating with a pulse energy of 480mJ, a repetition frequency of 6Hz, and 500 pulses. The results of characterizations showed clear peaks that indicated plasmonic absorption at a wavelength of 220nm. The predominance of the anatase Cu phase was revealed. The presence of spherical particles that were dispersed in clusters were also revealed. The average size of these clusters ranged from 66.2 to 90.7 nanometers.