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Ko, Hyunhyub
Functional Nanomaterials & Devices Lab
Research Interests
  • Functional nanomaterials, flexible electronics, electronic skins, wearable sensors

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Bimetallic nanocobs: Decorating silver nanowires with gold nanoparticles

Cited 78 times inthomson ciCited 76 times inthomson ci
Title
Bimetallic nanocobs: Decorating silver nanowires with gold nanoparticles
Author
Gunawidjaja, RayPeleshanko, SergiyKo, HyunhyubTsukruk, Vladimir V.
Keywords
ENHANCED RAMAN-SCATTERING; SHAPE-CONTROLLED SYNTHESIS; ANISOTROPIC METAL NANOPARTICLES; SURFACE-PLASMON RESONANCE; PSM STAR POLYMERS; OPTICAL-PROPERTIES; CLICK CHEMISTRY; 2D ARRAYS; HOT-SPOTS; NANOSTRUCTURES
Issue Date
2008-04
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED MATERIALS, v.20, no.8, pp.1544 - 1549
Abstract
A study was conducted to demonstrate a novel design of hybrid and bimetallic silver-gold core-double-shell nanowires with greatly enhanced surface-enhanced Raman scattering (SERS) ability. The study demonstrated the novel design, in which gold nanoparticles decorate the surface of silver nanowires, utilizing a three-arm star polymer with functional terminal groups as a linker. It was found that the gold nanoparticles form an effective and hybrid shell of 13 nm thickness with 4 nm gold nanoparticles embedded within the polymer shell around a 65 nm silver core. It was also demonstrated that such hybrid silver-gold nanowires possess significant SERS activity, exceeding the Raman scattering observed from isolated silver nanowires. The SERS is also observed to be much higher than that at the gap between two neighboring silver nanowires.
URI
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DOI
10.1002/adma.200703170
ISSN
0935-9648
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ECHE_Journal Papers
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