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Plasmonic Substrates Do Not Promote Vibrational Energy Transfer at Solid–Liquid Interfaces


Kraack, Jan Philip; Sévery, Laurent; Tilley, S David; Hamm, Peter (2017). Plasmonic Substrates Do Not Promote Vibrational Energy Transfer at Solid–Liquid Interfaces. Journal of Physical Chemistry Letters, 9(1):49-56.

Abstract

Intermolecular vibrational energy transfer in monolayers of isotopically mixed rhenium carbonyl complexes at solid–liquid interfaces is investigated with the help of ultrafast 2D Attenuated Total Reflectance Infrared (2D ATR IR) spectroscopy in dependence of plasmonic surface enhancement effects. Dielectric and plasmonic materials are used to demonstrate that plasmonic effects have no impact on the vibrational energy transfer rate in a regime of moderate IR surface enhancement (enhancement factors up to ca. 30). This result can be explained with the common image-dipole picture. The vibrational energy transfer rate thus can be used as a direct observable to determine intermolecular distances on surfaces, regardless of their plasmonic properties.

Abstract

Intermolecular vibrational energy transfer in monolayers of isotopically mixed rhenium carbonyl complexes at solid–liquid interfaces is investigated with the help of ultrafast 2D Attenuated Total Reflectance Infrared (2D ATR IR) spectroscopy in dependence of plasmonic surface enhancement effects. Dielectric and plasmonic materials are used to demonstrate that plasmonic effects have no impact on the vibrational energy transfer rate in a regime of moderate IR surface enhancement (enhancement factors up to ca. 30). This result can be explained with the common image-dipole picture. The vibrational energy transfer rate thus can be used as a direct observable to determine intermolecular distances on surfaces, regardless of their plasmonic properties.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
08 Research Priority Programs > Solar Light to Chemical Energy Conversion
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > General Materials Science
Physical Sciences > Physical and Theoretical Chemistry
Language:English
Date:15 December 2017
Deposited On:08 Feb 2018 11:21
Last Modified:28 Jul 2020 13:10
Publisher:American Chemical Society (ACS)
ISSN:1948-7185
Additional Information:This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpclett.7b02855.
OA Status:Green
Publisher DOI:https://doi.org/10.1021/acs.jpclett.7b02855

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