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Large‐Area Plasmonic Substrate of Silver‐Coated Iron Oxide Nanorod Arrays for Plasmon‐Enhanced Spectroscopy
Author(s) -
Carvalho Waldemir Moura,
Volpati Diogo,
Nunes Carvalho Vitor A.,
Aroca Ricardo F.,
Constantino Carlos J. L.,
Souza Flavio L.
Publication year - 2013
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201300054
Subject(s) - nanorod , materials science , plasmon , surface plasmon resonance , raman scattering , substrate (aquarium) , scanning electron microscope , nanostructure , raman spectroscopy , nanotechnology , chemical vapor deposition , surface plasmon , optoelectronics , nanoparticle , optics , oceanography , physics , geology , composite material
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‐Fe 2 O 3 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‐Fe 2 O 3 nanorod arrays by physical vapor deposition to form Ag islands.