title: Large-area plasmonic substrate of silver-coated iron oxide nanorod arrays for plasmon-enhanced spectroscopy.
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 α-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 α-Fe2O3 nanorod arrays by physical vapor deposition to form Ag islands.
authors: Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC, R. Santa Adélia 166, Santo André SP, Brazil.
authors: Waldemir Moura
authors: WM
authors: Carvalho
authors: Diogo
authors: D
authors: Volpati
authors: Vitor A
authors: VA
authors: Nunes Carvalho
authors: Ricardo F
authors: RF
authors: Aroca
authors: Carlos J L
authors: CJ
authors: Constantino
authors: Flavio L
authors: FL
authors: Souza