Optical properties of star-shaped gold nanoparticles

Nano Lett. 2006 Apr;6(4):683-8. doi: 10.1021/nl052409y.

Abstract

Here we report the synthesis, structure, and optical properties of ca. 100 nm star-shaped gold nanoparticles. Single particle spectroscopy measurements revealed that these nanoparticles have multiple plasmon resonances resulting in polarization-dependent scattering with multiple spectral peaks, which correspond to the different tips on the star-shaped structure. The plasmon resonances were also found to be extremely sensitive to the local dielectric environment.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Anisotropy
  • Gold / analysis
  • Gold / chemistry*
  • Gold / radiation effects
  • Light
  • Materials Testing
  • Molecular Conformation
  • Nanostructures / chemistry*
  • Nanostructures / radiation effects
  • Nanostructures / ultrastructure*
  • Nanotechnology / methods*
  • Optics and Photonics*
  • Surface Plasmon Resonance / methods*

Substances

  • Gold