10.1021/la803900w.s001
Hye-Mi Bok
Hye-Mi
Bok
Kevin
L. Shuford
Kevin
L.
Shuford
Sungwan Kim
Sungwan
Kim
Seong Kyu Kim
Seong Kyu
Kim
Sungho Park
Sungho
Park
Multiple Surface Plasmon Modes for Gold/Silver Alloy
Nanorods
American Chemical Society
2009
surface plasmon resonance
Multiple Surface Plasmon Modes
Aux
Ag portion
length
300 nm
variation
anodized aluminum oxide templates
peak positions
electrochemical codeposition
nanorod
LSPR modes
bimetallic gold
LSPR mode
2009-05-05 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Multiple_Surface_Plasmon_Modes_for_Gold_Silver_Alloy_Nanorods/2859415
Alloy nanorods consisting of bimetallic gold and silver are synthesized
by employing the electrochemical codeposition of Au/Ag alloy materials
into the pores of anodized aluminum oxide templates. This paper presents
the variation of localized surface plasmon resonance (LSPR) modes
of the Au<sub><i>x</i></sub>/Ag<sub>1−<i>x</i></sub> alloy nanorods as a function of relative compositions of Au
and Ag. Transverse and multiple longitudinal modes were observed when
the length was longer than ca. 300 nm. For a given length, the transverse
LSPR mode systematically blue-shifted as the Ag portion increased,
while there was little variation in peak positions of the longitudinal
LSPR modes. The optical properties of the Au<sub><i>x</i></sub>/Ag<sub>1−<i>x</i></sub> alloy nanorods were
calculated using the discrete dipole approximation and showed a good
agreement with the experimental measurements.