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Exploring copper na...
Exploring copper nanostructures as highly uniform and reproducible substrates for plasmon-enhanced fluorescence
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- Volpati, D. (författare)
- UNESP Univ Estadual Paulista, Brazil
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- Spada, E. R. (författare)
- Universidade de São Paulo, Brazil
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- Pla Cid, C. C. (författare)
- Universidade Federal de Santa Catarina, Brazil
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- Sartorelli, M. L. (författare)
- Universidade Federal de Santa Catarina, Brazil
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- Aroca, R. F. (författare)
- University of Windsor, Canada
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- Constantino, C. J. L. (författare)
- UNESP Univ Estadual Paulista, Brazil
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: The Analyst. - : Royal Society of Chemistry (RSC). - 0003-2654 .- 1364-5528. ; 140:2, s. 476-482
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- 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%.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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