An Experimental and Theoretical Comparison of Plasmonic Properties of Metallic Nano-Particles Have Different Morphological Properties

In this study, we have grown some plasmonic metal-nanoparticles have different morphological properties on the microscope slide and silicon wafer as substrates depending on an ambient background gas pressure and number of laser pulses by using Pulse Laser Deposition (PLD) technique in connection with a nanosecond Nd:YAG laser system. The morphology of these nanoparticles thin film was investigated by Atomic Force Microscopy. UV-vis spectra have shown that plasmonic metal-nanoparticles present a Localised Surface Plasmon Resonance band in visible and near-infrared (NIR) regions depending on the morphologic structure of the nanoparticles thin film. The LSPR of the plasmonic metal nanoparticles was calculated theoretically using Boundary Element Method simulation programme. The reliability of experimental results was verified by comparing the theoretical results with their experimental counterparts produced by using PLD, both were obtained in this work. Both theoretical and experimental results and their comparison have been presented and discussed in this study, and a conclusion has been made that the theoretical and experimental results for Cu were in all good agreement. (C) 2019 Elsevier Ltd. All rights reserved.