Nanostructured films of metal particles obtained by laser ablation

Colloidal dispersions of silver and gold nanoparticles were obtained in pure water by ablation with nanosecond pulsed laser. Then, by filtration of the metal particles on alumina, we fabricated nanostructured films, whose surface morphology was examined by atomic force microscopy (AFM) and related t...

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Veröffentlicht in:	Thin solid films 2013-09, Vol.543, p.118-121
Hauptverfasser:	Muniz-Miranda, M., Gellini, C., Giorgetti, E., Margheri, G., Marsili, P., Lascialfari, L., Becucci, L., Trigari, S., Giammanco, F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Ablation Adenines AFM Atomic force microscopy Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Dispersions Electron, ion, and scanning probe microscopy Exact sciences and technology Gold Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties Materials science Metal particles Nanocrystalline materials Nanoscale materials and structures: fabrication and characterization Nanostructure Nanostructured film Physics Raman scattering Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc SERS Silver Solid surfaces and solid-solid interfaces Structure of solids and liquids crystallography Surface chemistry Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Beschreibung
Zusammenfassung:	Colloidal dispersions of silver and gold nanoparticles were obtained in pure water by ablation with nanosecond pulsed laser. Then, by filtration of the metal particles on alumina, we fabricated nanostructured films, whose surface morphology was examined by atomic force microscopy (AFM) and related to surface-enhanced Raman scattering (SERS) after adsorption of adenine. •Ag and Au colloidal nanoparticles were obtained by laser ablation.•Nanostructured Ag and Au films were fabricated by filtration of metal nanoparticles.•Surface morphology of metal films was investigated by atomic force microscopy.•Surface-enhanced Raman spectra (SERS) of adenine on metal films were obtained.•SERS enhancements were related to the surface roughness of the metal films.
ISSN:	0040-6090 1879-2731
DOI:	10.1016/j.tsf.2013.02.057