Optical characterization of the polymer embedded alloyed bimetallic nanoparticles (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Optical characterization of the polymer embedded alloyed bimetallic nanoparticles (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Alternative label

• Belotelov, V.I., Carotenuto, G., Nicolais, L., Pepe, G.P., Zvezdin, A.K. (2005)
  Optical characterization of the polymer embedded alloyed bimetallic nanoparticles
  
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Belotelov, V.I., Carotenuto, G., Nicolais, L., Pepe, G.P., Zvezdin, A.K. (literal)

Pagina inizio

• 317 (literal)

Pagina fine

• 324 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 45 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• M.V. Lomonosov Moscow State University. Faculty of Physics. Russia Istituto per i Materiali Compositi e Biomedici. CNR di Napoli. Italy Physics Department. University of Naples. Italy (literal)

Titolo

• Optical characterization of the polymer embedded alloyed bimetallic nanoparticles (literal)

Abstract

• A theoretical approach for the calculation of the bimetallic nanoparticles absorption spectra has been developed as an extension of the Mie theory in which nanoparticles dielectric function is found by the weighted linear combination of the dielectric functions for particles made of the corresponding pure metals. In the frame work of the theoretical model an expression for the resonance light absorption frequency were derived taking in account the interband transitions in the dielectric functions. We proposed a simple method for the on-line monitoring of the bimetallic nanopparticles composition based on the measurementof the absorption pek position. Elaborated theoretical approach was used to investigate the polymer embedded Ag/Au nanoparticles which were prepared by reducing gold and silver salts (HAuCl4 and AgNO3, respectively) by ethylene glycol in presence of poly(vinyl pyrrolidone) (PVP) at room temperature. Calculated absorption spectra of the Ag/Au nanoscopic systems showed good agreement with experimental data. Temporal evolution of the Ag/Au nanoparticles has also been investigated by this approach. (literal)

Prodotto di

• Istituto per i materiali compositi e biomedici (IMCB) (Istituto)
• Polimeri, compositi e nanostrutture con proprietà funzionali programmate (PM.P02.003.001) (Modulo)

Autore CNR

• GIANFRANCO CAROTENUTO (Unità di personale interno)

Incoming links:

Prodotto

• Istituto per i materiali compositi e biomedici (IMCB) (Istituto)
• Polimeri, compositi e nanostrutture con proprietà funzionali programmate (PM.P02.003.001) (Modulo)

Autore CNR di

• GIANFRANCO CAROTENUTO (Unità di personale interno)