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Photoluminescent Enhancement of Ruthenium Complex Monolayers by Surface Plasmon Resonance of Silver Nanoparticles

Published online by Cambridge University Press:  21 March 2011

Shanlin Pan ,
Zhenjia Wang  and
Lewis J. Rothberg
Shanlin Pan
Affiliation:
Chemistry Department, University of Rochester, Rochester, NY 14627, U.S.A.
Zhenjia Wang
Affiliation:
Chemistry Department, University of Rochester, Rochester, NY 14627, U.S.A.
Lewis J. Rothberg*
Affiliation:
Chemistry Department, University of Rochester, Rochester, NY 14627, U.S.A.
*
Corresponding author, email: [email protected]
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Abstract

The photoluminescence intensity from a bis (2,2'-bipyridine)-(5-isothiocyanato-phenanthroline) Ruthenium (RuBICP) monolayer covalently bound to a glass substrate is found to be enhanced up to 20 times when silver nanoparticles are deposited on top. The emission spectra are blue shifted by interactions with the silver nanoparticles. Field enhancement is found to be able to enhance the radiative decay rate by over three orders of magnitude but fewer than 2 % of the molecules in the sample experience this large enhancement. Increased absorption rates also increase the luminescence but to a much smaller degree.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 818: Symposium M – Nanoparticles and Nanowire Building Blocks-Synthesis, Processing, Characterization and Theory , 2004 , M5.19.1
Copyright
Copyright © Materials Research Society 2004

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