Large-Area Plasmonic Substrate of Silver-Coated Iron Oxide Nanorod Arrays for Plasmon-Enhanced Spectroscopy

Author(s)

Carvalho, Jr., Waldemir Moura ^[1] ; Volpati, Diogo ^[2] ; Nunes Carvalho, Vitor A. ^[1] ; Aroca, Ricardo F. ^[3] ; Constantino, Carlos J. L. ^[2] ; Souza, Flavio L. ^[1]

Affiliation

^[1] Univ Fed Abc, CCNH, Santo Andre, SP - Brazil

^[2] UNESP Univ Estadual Paulista, Fac Ciencias & Tecnol, BR-19060900 Presidente Prudente, SP - Brazil

^[3] Univ Windsor, Mat & Surface Sci Grp, Windsor, ON N9B 3P4 - Canada

• Document type: Journal article
• Source: ChemPhysChem; v. 14, n. 9, p. 1871-1876, JUN 24 2013.
• Web of Science Citations: 5

Abstract

One-dimensional iron oxide materials fabricated on conducting glass substrates and their unique properties make these nanostructures promising candidates for a wide range of applications. Herein, vertically oriented -Fe2O3 nanorod arrays synthesized under hydrothermal conditions over a large area are described, as an active platform for surface-enhanced resonance Raman scattering (SERRS) and surface-enhanced fluorescence (SEF). From scanning electron microscopy images the formation of a homogeneous distribution of vertically oriented rods in a large area is confirmed. For activating the localized surface plasmon resonances, which are responsible for SERRS and SEF, a 6 nm layer of Ag is deposited onto the -Fe2O3 nanorod arrays by physical vapor deposition to form Ag islands. (AU)

• FAPESP's process: 12/19926-8 - Metal oxide nanostructures applied in photoelectrochemical devices
• Grantee: Flavio Leandro de Souza
• Support Opportunities: Regular Research Grants
• FAPESP's process: 10/02464-6 - Study of nanostructure of metalic oxide applied in photovoltaic cells
• Grantee: Flavio Leandro de Souza
• Support Opportunities: Regular Research Grants