Oil-in-water emulsion as fabrication platform for uniform plasmon-controlled two-dimensional metallic nanoparticle array

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5 Citations (Scopus)

Abstract

Gold/silver nanoparticles were trapped at the oil/water interface of oil droplets dispersed in water. The metallic nanoparticles were self-assembled into a uniform two-dimensional large array structure through the aggregation and coalescence of the nanoparticle-covered oil droplets. The plasmon resonance of the array structure was tunable and a surface-enhanced Raman scattering measurement was performed with the silver nanoparticle array. The enhancement factor was >105 and enhanced Raman signals were observed over the whole array (cm2) with high reproducibility, which is an advantage of a self-assembly method using a liquid/liquid interface.

Original languageEnglish
Article number075003
JournalApplied Physics Express
Volume9
Issue number7
DOIs
Publication statusPublished - Jul 1 2016

Fingerprint

emulsions
Emulsions
platforms
oils
Nanoparticles
Fabrication
nanoparticles
fabrication
water
Water
Silver
silver
liquid-liquid interfaces
Liquids
Coalescence
Self assembly
coalescing
Raman scattering
self assembly
Agglomeration

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "Gold/silver nanoparticles were trapped at the oil/water interface of oil droplets dispersed in water. The metallic nanoparticles were self-assembled into a uniform two-dimensional large array structure through the aggregation and coalescence of the nanoparticle-covered oil droplets. The plasmon resonance of the array structure was tunable and a surface-enhanced Raman scattering measurement was performed with the silver nanoparticle array. The enhancement factor was >105 and enhanced Raman signals were observed over the whole array (cm2) with high reproducibility, which is an advantage of a self-assembly method using a liquid/liquid interface.",
author = "Ryusuke Kagawa and Nobuyuki Takeyasu and Takashi Kaneta and Yoshito Takemoto",
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AU - Takemoto, Yoshito

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AB - Gold/silver nanoparticles were trapped at the oil/water interface of oil droplets dispersed in water. The metallic nanoparticles were self-assembled into a uniform two-dimensional large array structure through the aggregation and coalescence of the nanoparticle-covered oil droplets. The plasmon resonance of the array structure was tunable and a surface-enhanced Raman scattering measurement was performed with the silver nanoparticle array. The enhancement factor was >105 and enhanced Raman signals were observed over the whole array (cm2) with high reproducibility, which is an advantage of a self-assembly method using a liquid/liquid interface.

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