Maneuvering the surface plasmon resonance of silver nanostructures through shape-controlled synthesis

Journal Article

Silver nanostructures are containers for surface plasmons - the collective oscillation of conduction electrons in phase with incident light. By controlling the shape of the container, one can control the ways in which electrons oscillate, and in turn how the nanostructure scatters light, absorbs light, and enhances local electric fields. With a series of discrete dipole approximation (DDA) calculations, each of a distinctive morphology, we illustrate how shape control can tune the optical properties of silver nanostructures. Calculated predictions are validated by experimental measurements performed on nanocubes with controllable corner truncation, right bipyramids, and pentagonal nanowires. Control of nanostructure shape allows optimization of plasmon resonance for molecular detection and spectroscopy. © 2006 American Chemical Society.

Full Text

Duke Authors

Cited Authors

  • Wiley, BJ; Im, SH; Li, ZY; McLellan, J; Siekkinen, A; Xia, Y

Published Date

  • 2006

Published In

Volume / Issue

  • 110 / 32

Start / End Page

  • 15666 - 15675

International Standard Serial Number (ISSN)

  • 1520-6106

Digital Object Identifier (DOI)

  • 10.1021/jp0608628