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Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

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Polarization-Dependent Surface-Enhanced Raman Scattering from a Silver-Nanoparticle-Decorated Single Silver Nanowire

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Title
Polarization-Dependent Surface-Enhanced Raman Scattering from a Silver-Nanoparticle-Decorated Single Silver Nanowire
Author
Lee, Seung JoonBaik, Jeong MinMoskovits, Martin
Keywords
Dc electrodepositions; Functionalized; Hot spots; Incident lights; Long axis; Polarized perpendiculars; Porous anodic alumina templates; Self-assembly process; Silver nanoparticles; Silver nanowires; Surface-enhanced raman; Surface-enhanced raman scatterings
Issue Date
2008-10
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.8, no.10, pp.3244 - 3247
Abstract
Single silver nanowires produced by DC electrodeposition in porous anodic alumina templates were surface-functionalized with the Afunctional molecule 4-aminobenzenthiol (ABT) then exposed to aqueous silver nanoparticles resulting in a silver nanoparticle-decorated silver nanowire. The polarization dependent surface-enhanced Raman (SERS) signal from this system showed significant intensity anisotropy when measured at a midsection of the nanowire, where the largest SERS intensities were observed when the incident light was polarized perpendicular to the nanowire's long axis but was almost isotropic near the tip of the nanowire. The observed effects were accounted for in terms of the electromagnetic fields concentrated in the collection of hot spots created through the ABT-linker-driven nanoparticle-nanowire self-assembly process.
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DOI
10.1021/nl801603j
ISSN
1530-6984
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MSE_Journal Papers
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