title: Multilayer structures of self-assembled gold nanoparticles as a unique SERS and SEIRA substrate.
abstract: Metallic multilayer structures consisting of self-assembled nanoparticles are prepared by successive immersion of a functionalized glass substrate in a gold colloidal suspension, and are characterized by UV/Vis spectroscopy and atomic force microscopy. The ability of the thin film to concomitantly enhance the Raman and IR signals of an adsorbed molecule is evaluated and a detailed analysis of the recorded spectra is provided, which emphasizes the capability of these complementary methods to provide information about the adsorbed species. This unique surface-enhanced Raman spectroscopy (SERS) and surface-enhanced infrared absorption (SEIRA) substrate could be further used for applications in the elucidation of the structure of a great variety of adsorbed samples.
authors.affiliation: Faculty of Physics, Babes-Bolyai University, M. Kogalniceanu 1, 400084 Cluj-Napoca, Romania. monib@phys.ubbcluj.ro
authors.forename: Monica
authors.initials: M
authors.lastname: Baia
authors.forename: Felicia
authors.initials: F
authors.lastname: Toderas
authors.forename: Lucian
authors.initials: L
authors.lastname: Baia
authors.forename: Dana
authors.initials: D
authors.lastname: Maniu
authors.forename: Simion
authors.initials: S
authors.lastname: Astilean