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2011 ; 4
(4
): 791-800
Nephropedia Template TP
gab.com Text
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English Wikipedia
Gold Nanostructures for Surface-Enhanced Raman Spectroscopy, Prepared by
Electrodeposition in Porous Silicon
#MMPMID28879950
Fukami K
; Chourou ML
; Miyagawa R
; Muñoz Noval Á
; Sakka T
; Manso-Silván M
; Martín-Palma RJ
; Ogata YH
Materials (Basel)
2011[Apr]; 4
(4
): 791-800
PMID28879950
show ga
Electrodeposition of gold into porous silicon was investigated. In the present
study, porous silicon with ~100 nm in pore diameter, so-called medium-sized
pores, was used as template electrode for gold electrodeposition. The growth
behavior of gold deposits was studied by scanning electron microscope observation
of the gold deposited porous silicon. Gold nanorod arrays with different rod
lengths were prepared, and their surface-enhanced Raman scattering properties
were investigated. We found that the absorption peak due to the surface plasmon
resonance can be tuned by changing the length of the nanorods. The optimum length
of the gold nanorods was ~600 nm for surface-enhanced Raman spectroscopy using a
He-Ne laser. The reason why the optimum length of the gold nanorods was 600 nm
was discussed by considering the relationship between the absorption peak of
surface plasmon resonance and the wavelength of the incident laser for Raman
scattering.