Benz, F, Tserkezis, C, Herrmann, LO et al. (7 more authors) (2015) Nanooptics of molecular-shunted plasmonic nanojunctions. Nano Letters, 15 (1). pp. 669-674. ISSN 1530-6984
Abstract
Gold nanoparticles are separated above a planar gold film by 1.1 nm thick self-assembled molecular monolayers of different conductivities. Incremental replacement of the nonconductive molecules with a chemically equivalent conductive version differing by only one atom produces a strong 50 nm blue-shift of the coupled plasmon. With modeling this gives a conductance of 0.17G0 per biphenyl-4,4′-dithiol molecule and a total conductance across the plasmonic junction of 30G0. Our approach provides a reliable tool quantifying the number of molecules in each plasmonic hotspot, here <200.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
Keywords: | Molecular conductivity; Nanophotonics; Plasmonic coupling; Plasmonics; Sensing; Surface-enhanced Raman spectroscopy |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Molecular & Nanoscale Physics |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 May 2015 11:03 |
Last Modified: | 08 Mar 2019 15:15 |
Published Version: | http://dx.doi.org/10.1021/nl5041786 |
Status: | Published |
Publisher: | American Chemical Society |
Refereed: | Yes |
Identification Number: | 10.1021/nl5041786 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:84257 |