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Proceedings Paper

Ag on carbon nanowalls mesostructures for SERS
Author(s): Mikhail Yu. Tsvetkov; Stanislav A. Evlashin; Kirill V. Mironovich; Svetlana A. Minaeva; Nikolay V. Suetin; Victor N. Bagratashvili
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Paper Abstract

We have elaborated substrates for surface enhanced Raman scattering (SERS) based on carbon nanowalls (CNW) deposited with Ag nanoparticles and thin Ag films. For carbon nanowalls deposited with silver nanoparticles, the achieved analytical enhancement factor SERS was from 50 to 2500. Much higher analytical enhancement factor of SERS, up to 5×104, was obtained for carbon nanowalls deposited with thin Ag film. In this case the SERS signal is determined by fractal structure of carbon nanowalls covered by Ag films. Such fractal structure provides a strong inhomogeneous localization of light, formation of a large number of hot spots and leads as a result to significant enhancement of SERS signal.

Paper Details

Date Published: 6 January 2015
PDF: 8 pages
Proc. SPIE 9450, Photonics, Devices, and Systems VI, 94501V (6 January 2015); doi: 10.1117/12.2073252
Show Author Affiliations
Mikhail Yu. Tsvetkov, Institute on Laser and Information Technologies (Russian Federation)
Stanislav A. Evlashin, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Kirill V. Mironovich, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Svetlana A. Minaeva, Institute on Laser and Information Technologies (Russian Federation)
Nikolay V. Suetin, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Victor N. Bagratashvili, Institute on Laser and Information Technologies (Russian Federation)


Published in SPIE Proceedings Vol. 9450:
Photonics, Devices, and Systems VI
Pavel Tománek; Dagmar Senderáková; Petr Páta, Editor(s)

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