| |  Online-Ressource |
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| Verfasst von: | Vogt, Jochen [VerfasserIn]  |
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| | Huck, Christian [VerfasserIn] |
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| | Neubrech, Frank [VerfasserIn] |
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| | Toma, Andrea [VerfasserIn] |
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| | Gerbert, David [VerfasserIn] |
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| | Pucci, Annemarie [VerfasserIn] |
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| Titel: | Impact of the plasmonic near- and far-field resonance-energy shift on the enhancement of infrared vibrational signals |
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| Verf.angabe: | Jochen Vogt, Christian Huck, Frank Neubrech, Andrea Toma, David Gerbert and Annemarie Pucci |
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| Jahr: | 2015 |
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| Jahr des Originals: | 2014 |
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| Umfang: | 7 S. |
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| Fussnoten: | First published 08 December 2014 ; Gesehen am 25.06.2020 |
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| Titel Quelle: | Enthalten in: Physical chemistry, chemical physics |
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| Ort Quelle: | Cambridge : RSC Publ., 1999 |
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| Jahr Quelle: | 2015 |
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| Band/Heft Quelle: | 17(2015), 33, Seite 21169-21175 |
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| ISSN Quelle: | 1463-9084 |
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| Abstract: | We report on the impact of the differing spectral near- and far-field properties of resonantly excited gold nanoantennas on the vibrational signal enhancement in surface-enhanced infrared absorption (SEIRA). The knowledge on both spectral characteristics is of considerable importance for the optimization of plasmonic nanostructures for surface-enhanced spectroscopy techniques. From infrared micro-spectroscopic measurements, we simultaneously obtain spectral information on the plasmonic far-field response and, via SEIRA spectroscopy of a test molecule, on the near-field enhancement. The molecular test layer of 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP) was deposited on the surface of gold nanoantennas with different lengths and thus different far-field resonance energies. We carefully studied the Fano-type vibrational lines in a broad spectral window, in particular, how the various vibrational signals are enhanced in relation to the ratio of the far-field plasmonic resonance and the molecular vibrational frequencies. As a detailed experimental proof of former simulation studies, we show the clearly red-shifted maximum SEIRA enhancement compared to the far-field resonance. |
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| DOI: | doi:10.1039/C4CP04851B |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1039/C4CP04851B |
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| | Volltext: https://pubs.rsc.org/en/content/articlelanding/2015/cp/c4cp04851b |
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| | DOI: https://doi.org/10.1039/C4CP04851B |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1702133435 |
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| Verknüpfungen: | → Zeitschrift |
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Impact of the plasmonic near- and far-field resonance-energy shift on the enhancement of infrared vibrational signals / Vogt, Jochen [VerfasserIn]; 2015 (Online-Ressource)
