Tunable Surface-Enhanced Raman Scattering from Large Gold Nanoparticle Arrays

Raman signal enhancements in excess of 107 can be achieved at near-infrared wavelengths when mid-nanometer sized gold particles self-organize into close-packed planar arrays. These substrates generate stable surface-enhanced Raman scattering which changes dramatically as a function of periodic structure and excitation wavelength. Supporting information for this article is available on the WWW under http://www.chemphyschem.com or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.