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Surface enhanced luminescence and Raman scattering from ferroelectrically defined Ag nanopatterned arrays
KTH, School of Engineering Sciences (SCI), Applied Physics, Quantum Electronics and Quantum Optics, QEO.
KTH, School of Engineering Sciences (SCI), Applied Physics, Quantum Electronics and Quantum Optics, QEO.ORCID iD: 0000-0001-7185-0457
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2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 8, 083105- p.Article in journal (Refereed) Published
Abstract [en]

Ag nanopatterned arrays prepared using periodically proton exchanged templates have been demonstrated to support surface enhanced luminescence. Fluorescence lifetime imaging reveals that luminescence intensity is greatest on Ag and that the lifetime of the molecular probe is reduced, in line with a surface enhanced luminescence mechanism. Studies establish that the substrate simultaneously supports surface enhanced luminescence and Raman scattering. Spatial dependence along the nanopatterned arrays shows <7% variation in Raman scattering signal intensity, offering high reproducibility for practical applications. Fluorophores emitting near the plasmon absorption maxima are enhanced 4-fold.

Place, publisher, year, edition, pages
2013. Vol. 103, no 8, 083105- p.
Keyword [en]
Enhanced luminescence, Fluorescence lifetime imaging, High reproducibility, Luminescence intensity, Plasmon absorption, Proton exchanged, Scattering signals, Spatial dependence
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Identifiers
URN: urn:nbn:se:kth:diva-129459DOI: 10.1063/1.4818910ISI: 000323788100067Scopus ID: 2-s2.0-84883334508OAI: oai:DiVA.org:kth-129459DiVA: diva2:652538
Note

QC 20131001. Correction in: Applied Physics Letters, vol. 103, issue. 10,  Article Number. 109902, doi: 10.1063/1.4820766, WOS: 000324389700077

ScopusID:2-s2.0-84884232468

Available from: 2013-10-01 Created: 2013-09-30 Last updated: 2017-12-06Bibliographically approved

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Gallo, Katia

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