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Application of AAO matrix in aligned gold nanorod array substrates for surface-Enhanced fluorescence and Raman scattering
Damm, Signe; Lordan, Frances; Murphy, Antony; Rice, James H.; et al.
In this paper, we probed surface-enhanced Raman scattering (SERS) and surface-enhanced fluorescence (SEF) from probe molecule Rhodamine 6G (R6G) on self-standing Au nanorod array substrates made using a combination of anodization and potentiostatic electrodeposition. The initial substrates were embedded within a porous alumina template (AAO). By controlling the thickness of the AAO matrix, SEF and SERS were observed exhibiting an inverse relationship. SERS and SEF showed a non-linear response to the removal of AAO matrix due to an inhomogeneous plasmon activity across the nanorod which was supported by FDTD calculations. We showed that by optimizing the level of AAO thickness, we could obtain either maximized SERS, SEF or simultaneously observe both SERS and SEF together. Science Foundation Ireland Engineering and Physical Sciences Research Council (EPSRC UK)
Keyword(s): SEF; SERS; Fluorescence; Alumina template; NaOH; Etching; Raman; Nanorods; Gold; Rhodamine 6G
Publication Date:
2017
Type: Journal article
Peer-Reviewed: Unknown
Language(s): English
Institution: University College Dublin
Publisher(s): Springer
First Indexed: 2017-02-04 06:06:46 Last Updated: 2019-05-11 06:16:59