Journal of Fluorescence

, 15:777

Enhanced Fluorescence from Periodic Arrays of Silver Nanoparticles

  • T. D. Corrigan
  • S. Guo
  • R. J. Phaneuf
  • H. Szmacinski
Article

DOI: 10.1007/s10895-005-2987-3

Cite this article as:
Corrigan, T.D., Guo, S., Phaneuf, R.J. et al. J Fluoresc (2005) 15: 777. doi:10.1007/s10895-005-2987-3

Abstract

Electron beam lithography was used to fabricate silver nanoparticle arrays and study the effects of geometrical properties of particles on metal-enhanced fluorescence. Nanoparticle size, shape, interparticle spacing, and nominal thickness were varied in a combinatorial pattern for investigation of the particle plasmon resonance effect on enhancement of fluorescence from three different fluorophores; Fluorescein, Cy3, and Cy5. A specific geometric property for optimal enhancement from each fluorophore was determined. For interparticle spacings greater or equal to 270 nm, the enhancement matched what is expected for a single-particle model. For those particles smaller than 210 nm, the enhancement was lower than for the larger spacing in the range studied. Triangular-shaped particles gave similar enhancement to those of square-shaped particles. This combinatorial pattern by e-beam lithography was found to be useful for studying how individual parameters enhance the fluorescence that are important for rational design of enhanced fluorescence sensors.

Keywords

Fluorescenceparticle plasmon resonanceelectron-beam lithographymetallic nanoparticlesCy3Cy5

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • T. D. Corrigan
    • 1
  • S. Guo
    • 1
  • R. J. Phaneuf
    • 1
  • H. Szmacinski
    • 2
  1. 1.Department of Materials Science and EngineeringUniversity of Maryland and Laboratory for Physical Sciences
  2. 2.Microcosm Inc.Columbia