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Title: Study of electromagnetic enhancement for surface enhanced Raman spectroscopy of SiC graphene
Authors: Wee, Andrew T. S.
Niu, Jing
Truong, Viet Giang
Huang, Han
Tripathy, Sudhiranjan
Qiu, Caiyu
Yu, Ting
Yang, Hyunsoo
Keywords: DRNTU::Science::Physics::Electricity and magnetism
Issue Date: 2012
Source: Niu, J., Truong, V. G., Huang, H., Tripathy, S., Qiu, C., Wee, A. T. S., et al. (2012). Study of electromagnetic enhancement for surface enhanced Raman spectroscopy of SiC graphene. Applied Physics Letters, 100(19), 191601.
Series/Report no.: Applied physics letters
Abstract: The electromagnetic enhancement for surface enhanced Raman spectroscopy (SERS) of graphene is studied by inserting a layer of Al2O3 between epitaxial graphene and Au nanoparticles. Different excitation lasers are utilized to study the relationship between laser wavelength and SERS. The theoretical calculation shows that the extinction spectrum of Au nanoparticles is modulated by the presence of graphene. The experimental results of the relationship between the excitation laser wavelength and the enhancement factor fit well with the calculated results. An exponential relationship is observed between the enhancement factor and the thickness of the spacer layer.
ISSN: 0003-6951
DOI: 10.1063/1.4712054
Rights: © 2012 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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