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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Exploring copper nanostructures as highly uniform and reproducible substrates for plasmon-enhanced fluorescence

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Author(s):
Volpati, D. [1, 2] ; Spada, E. R. [1] ; Pla Cid, C. C. [3] ; Sartorelli, M. L. [4] ; Aroca, R. F. [5] ; Constantino, C. J. L. [2]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560 Sao Carlos, SP - Brazil
[2] UNESP Univ Estadual Paulista, Fac Ciencias & Tecnol, BR-19060900 Presidente Prudente, SP - Brazil
[3] Univ Fed Santa Catarina, Lab Cent Microscopia Eletron, BR-88040900 Florianopolis, SC - Brazil
[4] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC - Brazil
[5] Univ Windsor, Mat & Surface Sci Grp, Windsor, ON N9B 3P4 - Canada
Total Affiliations: 5
Document type: Journal article
Source: ANALYST; v. 140, n. 2, p. 476-482, 2015.
Web of Science Citations: 8
Abstract

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%. (AU)

FAPESP's process: 12/09905-3 - Spectroscopic evaluation of the bulk and interfacial molecular orientations of organic thin films deposited onto different surfaces
Grantee:Diogo Volpati
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 11/11065-0 - Hybrid solar cells: architecture-based photonic and plasmonic effects
Grantee:Edna Regina Spada
Support Opportunities: Scholarships in Brazil - Post-Doctoral