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In this work, we propose a methodology to synthesize metallic nanoparticles on textured Fluorine Tin Oxide (FTO) surface by laser irradiations of deposited Au films. In particular, the breakup of the Au films into nanoparticles (NPs) is observed as a consequence of the melting and solidification processes induced by laser irradiations. The mean Au NPs size and surface density evolution are analyzed as a function of the laser fluence. Optical characterizations of the glass/FTO/Au NPs multilayer show, in the absorption spectra, plasmonic peaks due to the Au NPs and an improvement of the light absorption efficiency from the sample with larger Au NPs. The simulated trends of the ratio between the scattering and absorption cross section suggest that the absorption efficiency dominates over the scattering efficiency in the spectral range between 200 and 600 nm. The simulation shows that, by varying the NPs …
Springer US
Publication date: 
1 Dec 2014

A Gentile, G Cacciato, F Ruffino, R Reitano, G Scapellato, M Zimbone, S Lombardo, A Battaglia, C Gerardi, M Foti, MG Grimaldi

Biblio References: 
Volume: 49 Issue: 24 Pages: 8498-8507
Journal of materials science