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Reproducible SERRS from structured gold surfaces.
Phys Chem Chem Phys. 2007 Dec 07; 9(45):6016-20.PC

Abstract

Metallic substrates with ordered spherical cavities have been shown to be very effective for surface-enhanced Raman scattering (SERS) and can be fabricated reproducibly using electrodeposition. The sensitivity of detection is increased by several orders of magnitude by using surface-enhanced resonance Raman scattering (SERRS). In this report we demonstrate SERRS for the first time on electrodeposited gold films templated with colloidal spheres and demonstrate the reproducibility of the response. We also obtain a direct comparison between SERRS and SERS by choosing two dyes, Cy5 and Cy3, which are similar in structure but differ in their excitation maxima, such that one is resonant and the other non-resonant with our laser excitation. As expected, the resonant enhancement is found to be of the order of 10(3) over and above that for SERS. The net SERRS enhancements are shown to be of the order of 10(9). We also find that the resonant enhancement profile of the different peaks for the chromophore follows the plasmonic resonance absorption spectrum obtained for the structured surface.

Authors+Show Affiliations

School of Chemistry, University of Southampton, Southampton, UK.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18004415

Citation

Mahajan, Sumeet, et al. "Reproducible SERRS From Structured Gold Surfaces." Physical Chemistry Chemical Physics : PCCP, vol. 9, no. 45, 2007, pp. 6016-20.
Mahajan S, Baumberg JJ, Russell AE, et al. Reproducible SERRS from structured gold surfaces. Phys Chem Chem Phys. 2007;9(45):6016-20.
Mahajan, S., Baumberg, J. J., Russell, A. E., & Bartlett, P. N. (2007). Reproducible SERRS from structured gold surfaces. Physical Chemistry Chemical Physics : PCCP, 9(45), 6016-20.
Mahajan S, et al. Reproducible SERRS From Structured Gold Surfaces. Phys Chem Chem Phys. 2007 Dec 7;9(45):6016-20. PubMed PMID: 18004415.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reproducible SERRS from structured gold surfaces. AU - Mahajan,Sumeet, AU - Baumberg,Jeremy J, AU - Russell,Andrea E, AU - Bartlett,Philip N, Y1 - 2007/10/10/ PY - 2007/11/16/pubmed PY - 2008/3/1/medline PY - 2007/11/16/entrez SP - 6016 EP - 20 JF - Physical chemistry chemical physics : PCCP JO - Phys Chem Chem Phys VL - 9 IS - 45 N2 - Metallic substrates with ordered spherical cavities have been shown to be very effective for surface-enhanced Raman scattering (SERS) and can be fabricated reproducibly using electrodeposition. The sensitivity of detection is increased by several orders of magnitude by using surface-enhanced resonance Raman scattering (SERRS). In this report we demonstrate SERRS for the first time on electrodeposited gold films templated with colloidal spheres and demonstrate the reproducibility of the response. We also obtain a direct comparison between SERRS and SERS by choosing two dyes, Cy5 and Cy3, which are similar in structure but differ in their excitation maxima, such that one is resonant and the other non-resonant with our laser excitation. As expected, the resonant enhancement is found to be of the order of 10(3) over and above that for SERS. The net SERRS enhancements are shown to be of the order of 10(9). We also find that the resonant enhancement profile of the different peaks for the chromophore follows the plasmonic resonance absorption spectrum obtained for the structured surface. SN - 1463-9076 UR - https://www.unboundmedicine.com/medline/citation/18004415/Reproducible_SERRS_from_structured_gold_surfaces_ L2 - https://doi.org/10.1039/b712144j DB - PRIME DP - Unbound Medicine ER -