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Exploring copper nanostructures as highly uniform and reproducible substrates for plasmon-enhanced fluorescence
UNESP Univ Estadual Paulista, Brazil.
Universidade de São Paulo, Brazil .
Universidade Federal de Santa Catarina, Brazil .
Universidade Federal de Santa Catarina, Brazil .
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2015 (English)In: The Analyst, ISSN 0003-2654, E-ISSN 1364-5528, Vol. 140, no 2, 476-482 p.Article in journal (Refereed) Published
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Abstract [en]

The unique properties of metallic nanostructures of coinage metals that can sustain localized surface plasmon resonances (LSPR) put them at the centre of plasmon-enhanced phenomena. The theory of plasmonic phenomena based on LSPR is well-established. However, the fabrication of plasmonic substrates, reproducibly, is still challenging for applications in surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF). In this work we describe well-ordered copper nanostructures (CuNSs), produced by electrodeposition and nanosphere lithography, as active substrates for SEF. After a detailed spectroscopic and microscopic characterization, CuNSs are successfully applied as SEF-active substrates using a well-known perylene derivative as a target molecule. The signal reproducibility from CuNS substrates was established by comparing the results against those obtained from a simply roughened Cu substrate. Under optimal conditions, signal variability is around 4%.

Place, publisher, year, edition, pages
2015. Vol. 140, no 2, 476-482 p.
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Condensed Matter Physics
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URN: urn:nbn:se:miun:diva-27287DOI: 10.1039/c4an00889hISI: 000346304200011PubMedID: 25416536OAI: oai:DiVA.org:miun-27287DiVA: diva2:918998
Available from: 2016-04-12 Created: 2016-03-19 Last updated: 2016-04-15Bibliographically approved

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Volpati, D.
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