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Article: Metal-enhanced fluorescence of carbon nanotubes

TitleMetal-enhanced fluorescence of carbon nanotubes
Authors
Issue Date2010
Citation
Journal of the American Chemical Society, 2010, v. 132, n. 45, p. 15920-15923 How to Cite?
AbstractThe photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature. Here, we report the first case of metal enhanced fluorescence (MEF) of surfactant-coated carbon nanotubes on nanostructured gold substrates. The photoluminescence quantum yield of SWNTs is observed to be enhanced more than 10-fold. The dependence of fluorescence enhancement on metal-nanotube distance and on the surface plasmon resonance (SPR) of the gold substrate for various SWNT chiralities is measured to reveal the mechanism of enhancement. Surfactant-coated SWNTs in direct contact with metal exhibit strong MEF without quenching, suggesting a small quenching distance for SWNTs on the order of the van der Waals distance, beyond which the intrinsically fast nonradiative decay rate in nanotubes is little enhanced by metal. The metal enhanced fluorescence of SWNTs is attributed to radiative lifetime shortening through resonance coupling of SWNT emission to the reradiating dipolar plasmonic modes in the metal. © 2010 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/334224
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHong, Guosong-
dc.contributor.authorTabakman, Scott M.-
dc.contributor.authorWelsher, Kevin-
dc.contributor.authorWang, Hailiang-
dc.contributor.authorWang, Xinran-
dc.contributor.authorDai, Hongjie-
dc.date.accessioned2023-10-20T06:46:37Z-
dc.date.available2023-10-20T06:46:37Z-
dc.date.issued2010-
dc.identifier.citationJournal of the American Chemical Society, 2010, v. 132, n. 45, p. 15920-15923-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/334224-
dc.description.abstractThe photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature. Here, we report the first case of metal enhanced fluorescence (MEF) of surfactant-coated carbon nanotubes on nanostructured gold substrates. The photoluminescence quantum yield of SWNTs is observed to be enhanced more than 10-fold. The dependence of fluorescence enhancement on metal-nanotube distance and on the surface plasmon resonance (SPR) of the gold substrate for various SWNT chiralities is measured to reveal the mechanism of enhancement. Surfactant-coated SWNTs in direct contact with metal exhibit strong MEF without quenching, suggesting a small quenching distance for SWNTs on the order of the van der Waals distance, beyond which the intrinsically fast nonradiative decay rate in nanotubes is little enhanced by metal. The metal enhanced fluorescence of SWNTs is attributed to radiative lifetime shortening through resonance coupling of SWNT emission to the reradiating dipolar plasmonic modes in the metal. © 2010 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleMetal-enhanced fluorescence of carbon nanotubes-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ja1087997-
dc.identifier.pmid20979398-
dc.identifier.scopuseid_2-s2.0-78449258851-
dc.identifier.volume132-
dc.identifier.issue45-
dc.identifier.spage15920-
dc.identifier.epage15923-
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000284202200029-

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