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      Effect of solvent refractive index on the surface plasmon resonance nanoparticle optical absorption

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      Author
      Ertas, G.
      Süzer, Şefik
      Date
      2007
      Source Title
      Journal of Nanoscience and Nanotechnology
      Print ISSN
      1533-4880
      Volume
      7
      Issue
      12
      Pages
      4333 - 4338
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Optical properties of plasmon coupled silver and gold nanoparticles were studied as a function of the refractive index of the surrounding medium. Our studies confirmed that the effect of changes in the refractive index of the surrounding medium was more difficult to demonstrate from an experimental point of view, because of the very high susceptibility of nanoparticles to aggregate in aqueous and organic solvents. Whereas the position of the absorption bands of triiodide in these solvents shows a clear dependence on medium's refractive index, the surface plasmon band position of silver and gold nanoparticles do not exhibit the same dependence. This is attributed to a non-negligible interaction of these solvents with nanoparticle surfaces. Copyright © 2007 American Scientific Publishers All rights reserved.
      Keywords
      Gold and Silver Nanoparticles
      Refractive Index
      (PL) properties
      Absorption bands
      Gold nanoparticles (nano-Au)
      Nanoparticle surfaces
      Optical (PET) (OPET)
      Optical absorption (OA)
      Plasmon (CO)
      Surface plasmon (SP)
      Surface-plasmon bands
      triiodide
      Absorption
      Fluids
      Geometrical optics
      Gold
      Light refraction
      Nanoparticles
      Nanostructures
      Optical properties
      Organic compounds
      Organic polymers
      Organic solvents
      Photoacoustic effect
      Plasmons
      Precious metals
      Refractometers
      Semiconducting cadmium telluride
      Silver
      Solvents
      Surface plasmon resonance
      Nanostructured materials
      Permalink
      http://hdl.handle.net/11693/23264
      Published Version (Please cite this version)
      http://dx.doi.org/10.1166/jnn.2007.906
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      • Department of Chemistry 622
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