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Proceedings Paper

Vertical silver nanorod growth as a surface-enhanced Raman scattering
Author(s): NoSoung Myoung; Jung Su Park; Yong-Suk Shin; Chang-Lyoul Lee; Sang-Youp Yim
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Paper Abstract

We report an optimization of the fabrication method on arrays of vertically grown nanometer scaled silver rod using nanosphere (polystyrene) lift-off on SiO2 wafer as a surface-enhance Raman scattering substrate by thermal evaporation technology as well as real-time vapor phase detection of CHCl3 by the radiation of fiber optic coupled 785 nm diode laser. Raman peak at 668.2 cm-1 for CHCl3 (C-H stretching band) was compared to the peak at 1088.4 cm-1 of 1- propanethiol (CH3 rock band) and the detection limit of CHCl3 vapor phase contamination level was estimated as a function of the peak intensity ratio of 668.2 vs. 1088.4. The detectable range using Ag nanorod wells on SiO2 substrate was 20-800 ppm. We were able to make significant steps toward developing cost effective nano-pattern as a Raman sensor.

Paper Details

Date Published: 12 March 2015
PDF: 6 pages
Proc. SPIE 9352, Synthesis and Photonics of Nanoscale Materials XII, 93520O (12 March 2015); doi: 10.1117/12.2078603
Show Author Affiliations
NoSoung Myoung, Gwangju Institute of Science and Technology (Korea, Republic of)
Jung Su Park, Gwangju Institute of Science and Technology (Korea, Republic of)
Yong-Suk Shin, Gwangju Institute of Science and Technology (Korea, Republic of)
Chang-Lyoul Lee, Gwangju Institute of Science and Technology (Korea, Republic of)
Sang-Youp Yim, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 9352:
Synthesis and Photonics of Nanoscale Materials XII
Jan J. Dubowski; David B. Geohegan; Andrei V. Kabashin, Editor(s)

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