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RESEARCH PRODUCT
Surface enhanced Raman scattering of silver sensitized cobalt nanoparticles in metal–dielectric nanocomposites
José GonzaloY ZhouBoris Luk'yanchukLucien SaviotG. Van TendelooJérémie MargueritatJérémie MargueritatCarmen N. AfonsoDaniel B. MurrayU. HörmannMinghui HongAdnen Mlayahsubject
inorganic chemicalsMaterials scienceAnalytical chemistry[ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]chemistry.chemical_elementNanoparticleNanoprobeBioengineering02 engineering and technology01 natural sciencesSilver nanoparticlesymbols.namesake0103 physical sciencesGeneral Materials ScienceElectrical and Electronic Engineering010306 general physicsNanocompositeMechanical EngineeringPhysicsSurface plasmonGeneral Chemistry021001 nanoscience & nanotechnologychemistryChemical engineeringMechanics of Materialssymbols[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]0210 nano-technologyRaman spectroscopyCobaltRaman scatteringdescription
We report the preparation of a new type of nanocomposite containing cobalt and silver nanoparticles organized in parallel layers with a well controlled separation. This arrangement allows the observation of an enhanced low-frequency Raman signal at the vibration frequency of cobalt nanoparticles excited through the surface plasmons of silver nanoparticles. Numerical simulations of the electric field confirm the emergence of hot spots when the separation between silver and cobalt nanoparticles is small enough. © IOP Publishing Ltd.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-09-17 |