Au@Ag Core-Shell Nanocubes: Epitaxial Growth Synthesis and Surface-Enhanced Raman Scattering Performance (Articolo in rivista)

Type

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

Label

• Au@Ag Core-Shell Nanocubes: Epitaxial Growth Synthesis and Surface-Enhanced Raman Scattering Performance (Articolo in rivista) (literal)

Anno

• 2015-01-01T00:00:00+01:00 (literal)

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

• 10.1039/C4CP05642F (literal)

Alternative label

• Yanting Liu, Jun Zhou, Binbing Wang, Tao Jiang, H.P. Ho, Lucia Petti and Pasquale Mormile (2015)
  Au@Ag Core-Shell Nanocubes: Epitaxial Growth Synthesis and Surface-Enhanced Raman Scattering Performance
  in Physical Chemistry Chemical Physics
  (literal)

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

• Yanting Liu, Jun Zhou, Binbing Wang, Tao Jiang, H.P. Ho, Lucia Petti and Pasquale Mormile (literal)

Rivista

• Physical Chemistry Chemical Physics (Rivista)

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

• ICIB-CNR (literal)

Titolo

• Au@Ag Core-Shell Nanocubes: Epitaxial Growth Synthesis and Surface-Enhanced Raman Scattering Performance (literal)

Abstract

• Novel Au@Ag core-shell nanocubes (NCs) were successfully prepared by the controlled epitaxial growth of Ag shells onto Au nanoellipsoids (NEs) in the presence of surfactants. The growth mechanism of the Au@Ag core-shell NCs was systematically investigated by analyzing their morphology, optical properties, and crystallography. The localized surface plasmon resonance (LSPR) characteristics and the electric field distribution of the Au@Ag core-shell NCs were studied using the finite element method (FEM) based on the plasmon hybridization theory. Compared with pure Ag NCs, the absorption spectrum of the Au@Ag core-shell NCs exhibits a red shift and a weak shoulder near 550 nm, and the notable enhancement of electric field occurs around the corners along the long-axis of Au ellipsoidal core because of plasmonic resonant coupling. Surface-enhanced Raman scattering (SERS) of the Au@Ag core-shell NCs labeled with 4-mercaptobenzoic acid molecules reveals that the bimetallic core-shell NCs possess efficient SERS activity with an enhancement factor EF = 2.27×106, thus confirming the possibility of using the Au@Ag core-shell NCs as stable probe for SERS-based biosensing applications. (literal)

Prodotto di

• Istituto di Scienze Applicate e Sistemi Intelligenti \"Eduardo Caianiello\" (ISASI) (Istituto)
• Studio, realizzazione e tecniche diagnostiche ottiche di materiali compositi nanostrutturati e metamateriali per fotonica, optoelettronica e biosensing (MD.P01.029.002) (Modulo)

Autore CNR

• LUCIA PETTI (Persona)
• PASQUALE MORMILE (Persona)

Incoming links:

Autore CNR di

• LUCIA PETTI (Persona)
• PASQUALE MORMILE (Persona)

Prodotto

• Istituto di Scienze Applicate e Sistemi Intelligenti \"Eduardo Caianiello\" (ISASI) (Istituto)
• Studio, realizzazione e tecniche diagnostiche ottiche di materiali compositi nanostrutturati e metamateriali per fotonica, optoelettronica e biosensing (MD.P01.029.002) (Modulo)

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

• Physical Chemistry Chemical Physics (Rivista)