Simultaneous measurements of electronic conduction and Raman response in molecular junctions

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dc.creatorWard, Daniel R.
dc.creatorHalas, Naomi J.
dc.creatorCiszek, Jacob W.
dc.creatorTour, James M.
dc.creatorWu, Yanpeng
dc.creatorNordlander, Peter
dc.creatorNatelson, Douglas
dc.date2008-01-29
dc.date.accessioned2026-07-07T13:16:37Z
dc.date.available2026-07-07T13:16:37Z
dc.descriptionElectronic conduction through single molecules is affected by the molecular electronic structure as well as by other information that is extremely difficult to assess, such as bonding geometry and chemical environment. The lack of an independent diagnostic technique has long hampered single-molecule conductance studies. We report simultaneous measurement of the conductance and the Raman spectra of nanoscale junctions used for single-molecule electronic experiments. Blinking and spectral diffusion in the Raman response of both para-mercaptoaniline and a fluorinated oligophenylyne ethynylene correlate in time with changes in the electronic conductance. Finite difference time domain calculations confirm that these correlations do not result from the conductance modifying the Raman enhancement. Therefore, these observations strongly imply that multimodal sensing of individual molecules is possible in these mass-producible nanostructures.
dc.description16 pages, 5 figures + supporting material of 15 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/0801.4558
dc.identifierhttp://arxiv.org/abs/0801.4558
dc.identifierNano Lett. 8, 919-924 (2008)
dc.identifierdoi:10.1021/nl073346h
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230848
dc.subjectMesoscale and Nanoscale Physics
dc.titleSimultaneous measurements of electronic conduction and Raman response in molecular junctions
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