Journal
DYES AND PIGMENTS
Volume 77, Issue 3, Pages 545-549Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2007.08.007
Keywords
fluorescence; metal-enhanced fluorescence; radiative decay engineering; surface enhanced fluorescence; plasmon controlled fluorescence; radiating plasmons; plasmon enhanced fluorescence; plasmon enhanced luminescence
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In this paper, we report the first observation of metal-enhanced fluorescence emission of fluorophores from paper substrates. The fluorescence intensity is approximate to 5- and approximate to 9-fold brighter from Rose Bengal (RB) and Pt(II) octaethylporphine (PtOEP), respectively, on silver colloid-deposited paper as compared to uncoated paper. In addition, a reduced lifetime of RB near to silver particles (0.77 ns) was observed as compared to the non-silvered control sample (0.86 ns). An equivalent photostability of RB on Ag colloid-deposited paper and uncoated paper was also observed. Our findings are potentially helpful in applications to high-throughput surface analysis and as the basis of an anti-counterfeiting technology. (c) 2007 Elsevier Ltd. All rights reserved.
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