Communication

The Effect of an Active Substrate on Nanoparticle-Enhanced Fluorescence†

  1. Shy-Hauh Guo2,
  2. Shu-Ju Tsai3,
  3. Hung-Chih Kan4,
  4. De-Hao Tsai3,
  5. Michael R. Zachariah5,
  6. Raymond J. Phaneuf1,*

Article first published online: 28 MAR 2008

DOI: 10.1002/adma.200701126

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 8, pages 1424–1428, April 21, 2008

Additional Information

How to Cite

Guo, S.-H., Tsai, S.-J., Kan, H.-C., Tsai, D.-H., Zachariah, M. R. and Phaneuf, R. J. (2008), The Effect of an Active Substrate on Nanoparticle-Enhanced Fluorescence. Advanced Materials, 20: 1424–1428. doi: 10.1002/adma.200701126

Author Information

  1. 1

    Department of Materials Science and Engineering University of Maryland, College Park, MD 20740, (USA)

  2. 2

    Department of Electrical and Computer Engineering University of Maryland, College Park, MD 20740, (USA)

  3. 3

    Department of Materials Science and Engineering University of Maryland, College Park, MD 20740, (USA)

  4. 4

    Department of Physics University of Maryland, College Park, MD 20740, (USA)

  5. 5

    Department of Mechanical Engineering and Department of Chemistry University of Maryland, College Park, MD 20740, (USA)

*Department of Materials Science and Engineering University of Maryland, College Park, MD 20740, (USA).

  1. †

    This work supported by the IC Postdoctoral Program, the Laboratory for Physical Sciences, and in part by the NSF-MRSEC, DMR 0520471. The authors thank Microcosm, Inc. for assistance during the laser scanning microscopy measurements.

Publication History

  1. Issue published online: 21 APR 2008
  2. Article first published online: 28 MAR 2008
  3. Manuscript Revised: 19 NOV 2007
  4. Manuscript Received: 9 MAY 2007

Funded by

  • IC Postdoctoral Program, the Laboratory for Physical Sciences
  • NSF-MRSEC. Grant Number: DMR 0520471

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Keywords:

  • Nanoparticles;
  • Fluorescence;
  • Surface-enhanced (SERS)

Graphical Abstract

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Proximity of fluorescent molecules to noble metal nanoparticles leads to a strong enhancement of the fluorescent intensity during irradiation with light, a consequence of resonant coupling to localized particle plasmons. In this communication we show that the substrate can have a profound effect on this simple picture, not merely shifting the resonance, but actively reshaping the local fields, and resulting in even larger enhancements.

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