Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays

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Sphere segment void (SSV) arrays allow the reproducible engineering of plasmon-polariton modes from the near-infrared to the ultraviolet through the tuning of the void height and diameter. The wavelength dependence of surface-enhanced Raman scattering (SERS) can then in principle be controlled by se...

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Autores principales: Tognalli, N.G., Fainstein, A., Calvo, E.J., Abdelsalam, M., Bartlett, P.N.
Formato: JOUR
Materias:
4-mercaptopyridine
Cavity dimension
Covalently bonded
Incident wavelength
Molecular Probes
Nano-structuring
Near Infrared
Nonresonant
Plasmon-polariton modes
Plasmonic properties
Surface plasmons
Surface-enhanced Raman scattering
Void diameter
Wavelength dependence
Probes
Spheres
Substrates
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_19327447_v116_n5_p3414_Tognalli
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_19327447_v116_n5_p3414_Tognalli
record_format dspace
spelling todo:paper_19327447_v116_n5_p3414_Tognalli2023-10-03T16:35:54Z Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays Tognalli, N.G. Fainstein, A. Calvo, E.J. Abdelsalam, M. Bartlett, P.N. 4-mercaptopyridine Cavity dimension Covalently bonded Incident wavelength Molecular Probes Nano-structuring Near Infrared Nonresonant Plasmon-polariton modes Plasmonic properties Surface plasmons Surface-enhanced Raman scattering Void diameter Wavelength dependence Probes Spheres Substrates Sphere segment void (SSV) arrays allow the reproducible engineering of plasmon-polariton modes from the near-infrared to the ultraviolet through the tuning of the void height and diameter. The wavelength dependence of surface-enhanced Raman scattering (SERS) can then in principle be controlled by selecting these parameters. Using 4-mercaptopyridine as a covalently bonded nonresonant molecular probe, we report a detailed study of such wavelength dependence of SERS in Au SSV arrays as a function of void diameter and height. We conclude that the SERS mechanism on SSV arrays depends on the plasmonic properties of the substrates and also that additional effects contribute significantly to the observed enhancement including a chemical contribution related to the molecular probe and a nanostructuring induced surface plasmon localization existent for the smaller cavity dimensions. © 2012 American Chemical Society. Fil:Calvo, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19327447_v116_n5_p3414_Tognalli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 4-mercaptopyridine
Cavity dimension
Covalently bonded
Incident wavelength
Molecular Probes
Nano-structuring
Near Infrared
Nonresonant
Plasmon-polariton modes
Plasmonic properties
Surface plasmons
Surface-enhanced Raman scattering
Void diameter
Wavelength dependence
Probes
Spheres
Substrates
spellingShingle 4-mercaptopyridine
Cavity dimension
Covalently bonded
Incident wavelength
Molecular Probes
Nano-structuring
Near Infrared
Nonresonant
Plasmon-polariton modes
Plasmonic properties
Surface plasmons
Surface-enhanced Raman scattering
Void diameter
Wavelength dependence
Probes
Spheres
Substrates
Tognalli, N.G.
Fainstein, A.
Calvo, E.J.
Abdelsalam, M.
Bartlett, P.N.
Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays
topic_facet 4-mercaptopyridine
Cavity dimension
Covalently bonded
Incident wavelength
Molecular Probes
Nano-structuring
Near Infrared
Nonresonant
Plasmon-polariton modes
Plasmonic properties
Surface plasmons
Surface-enhanced Raman scattering
Void diameter
Wavelength dependence
Probes
Spheres
Substrates
description Sphere segment void (SSV) arrays allow the reproducible engineering of plasmon-polariton modes from the near-infrared to the ultraviolet through the tuning of the void height and diameter. The wavelength dependence of surface-enhanced Raman scattering (SERS) can then in principle be controlled by selecting these parameters. Using 4-mercaptopyridine as a covalently bonded nonresonant molecular probe, we report a detailed study of such wavelength dependence of SERS in Au SSV arrays as a function of void diameter and height. We conclude that the SERS mechanism on SSV arrays depends on the plasmonic properties of the substrates and also that additional effects contribute significantly to the observed enhancement including a chemical contribution related to the molecular probe and a nanostructuring induced surface plasmon localization existent for the smaller cavity dimensions. © 2012 American Chemical Society.
format JOUR
author Tognalli, N.G.
Fainstein, A.
Calvo, E.J.
Abdelsalam, M.
Bartlett, P.N.
author_facet Tognalli, N.G.
Fainstein, A.
Calvo, E.J.
Abdelsalam, M.
Bartlett, P.N.
author_sort Tognalli, N.G.
title Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays
title_short Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays
title_full Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays
title_fullStr Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays
title_full_unstemmed Incident wavelength resolved resonant SERS on au sphere segment void (SSV) arrays
title_sort incident wavelength resolved resonant sers on au sphere segment void (ssv) arrays
url http://hdl.handle.net/20.500.12110/paper_19327447_v116_n5_p3414_Tognalli
work_keys_str_mv AT tognalling incidentwavelengthresolvedresonantsersonauspheresegmentvoidssvarrays
AT fainsteina incidentwavelengthresolvedresonantsersonauspheresegmentvoidssvarrays
AT calvoej incidentwavelengthresolvedresonantsersonauspheresegmentvoidssvarrays
AT abdelsalamm incidentwavelengthresolvedresonantsersonauspheresegmentvoidssvarrays
AT bartlettpn incidentwavelengthresolvedresonantsersonauspheresegmentvoidssvarrays
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