Use of silver nanoparticles to enhance surface plasmon-coupled emission (SPCE)

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https://www.sciencedirect.com/science/article/pii/S0009261407017186

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https://doi.org/10.1016/j.cplett.2007.12.047
 http://hdl.handle.net/11603/36566

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UMBC Chemistry & Biochemistry Department
UMBC Institute of Fluorescence (IoF)

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https://orcid.org/0000-0002-9110-6374

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2007-12-23

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journal articles
postprints
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Chowdhury, Mustafa H., Krishanu Ray, Chris D. Geddes, and Joseph R. Lakowicz. “Use of Silver Nanoparticles to Enhance Surface Plasmon-Coupled Emission (SPCE).” Chemical Physics Letters 452, no. 1 (February 4, 2008): 162–67. https://doi.org/10.1016/j.cplett.2007.12.047.

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Attribution-NonCommercial-NoDerivatives 4.0 International

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Abstract

We report that self-assembled monolayers of colloidal silver nanoparticles can increase the intensity of the surface plasmon-coupled emission (SPCE) signal from sulforhodamine 101 (S101). The S101 was spin coated on a glass slide coated with a layer of continuous silver, and a silica layer upon which the nanoparticle layer was self-assembled. Of the various colloid sizes studied, the 40nm colloids showed both the highest enhancements in the SPCE signal and the largest extent of plasmon coupling, defined as the ratio of SPCE to Free Space signal. Our findings reveal a new technique that can be potentially employed to increase the sensitivity of SPCE applications.