Ultra-short pulsed laser deposition of thin silver films for surface enhanced Raman scattering (Articolo in rivista)

Type
Label
  • Ultra-short pulsed laser deposition of thin silver films for surface enhanced Raman scattering (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.surfcoat.2012.06.084 (literal)
Alternative label
  • De Bonis A.; Galasso A.; Ibris N.; Sansone M.; Santagata A.; Teghil R.; (2012)
    Ultra-short pulsed laser deposition of thin silver films for surface enhanced Raman scattering
    in Surface & coatings technology; Elsevier Science SA, Lausanne (Svizzera)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • De Bonis A.; Galasso A.; Ibris N.; Sansone M.; Santagata A.; Teghil R.; (literal)
Pagina inizio
  • 279 (literal)
Pagina fine
  • 285 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S025789721200672X (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 207 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Basilicata, Dipartimento Chim AM Tamburro, I-85100 Potenza, Italy Consorzio Interuniv Nazl Sci & Tecnol Mat INSTM, I-00121 Florence, Italy Univ Basilicata, CIGAS, I-85100 Potenza, Italy CNR IMIP UOS Potenza, I-85050 Tito, PZ, Italy (literal)
Titolo
  • Ultra-short pulsed laser deposition of thin silver films for surface enhanced Raman scattering (literal)
Abstract
  • Nanostructured thin films have been obtained by ultra-short pulsed laser deposition (PLD) of silver performed in vacuum. The ablation source used in these experiments was a frequency doubled (? = 527 nm) Nd:glass laser with a pulse duration of 250 fs. The films have been characterized by UV-vis spectroscopy, atomic force microscopy and transmission electron microscopy. The surface enhanced Raman scattering activity results, investigated by Raman scattering of rhodamine B adsorbed onto rough silver substrates, are strongly related to the effective surface area (ESA) of the silver surfaces. Surprisingly, silver films obtained by ultra-short PLD are very similar to those obtained by short PLD. With the aim of explaining this likeness, the dynamics of plasmas induced by short and ultra-short laser pulses have been studied by optical emission spectroscopy and fast imaging. Composition, velocity, excitation temperature and density of short and ultra-short plasmas are quite similar, showing that film properties are strongly related to the plasma features. (literal)
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