Self-assembled, ordered gold nanocrystal/silica thin films for prism-based surface plasmon resonance sensors

Gold nanocrystal(NC)/silica films are synthesized through self-assembly of water-soluble gold nanocrystal micelles and silica by sol-gel processing. Absorption and transmission spectra show a strong surface plasmon resonance absorption peak at ~520 nm. Angular excitation spectra of surface plasmon show a steep dip in the reflectivity curve at ~65° depending on the thickness and refractive index of the gold NC/silica film. A potential SPR sensor with enhanced sensitivities can be realized based on these gold NC/silica films. © 2005 Optical Society of America.

Duke Authors

Cited Authors

  • Yang, K; O'Brien, MJ; Malloy, KJ; Sigmon, TW; Fan, H; Lopez, GP; Brinker, CJ; Sheik-Bahae, M

Published Date

  • 2006

Published In

International Standard Serial Number (ISSN)

  • 2162-2701

Citation Source

  • SciVal