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Raman Spectrum of Graphene Coated Nano-Holes

Published online by Cambridge University Press:  01 February 2011

Amrita Banerjee
Affiliation:
ab224@njit.edu, New Jersey Institute of Technology, Electrical and Computer Engineering, 14 Bellair Place, Floor# 2, Newark, NJ, 07104, United States, 862-220-9024
Ruiqiong Li
Affiliation:
rl24@njit.edu, New Jersey Institute of Technology, Electronic Imaging Center, 161 Warren Street, Newark, NJ, 07102, United States
Haim Grebel
Affiliation:
haim.grebel@njit.edu, New Jersey Institute of Technology, Electronic Imaging Center, 161 Warren Street, Newark, NJ, 07102, United States
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Abstract

It was assumed in the past that aluminum is not a platform of choice for surface enhanced Raman scattering (SERS) experiments: this was in spite of its large negative permittivity value, larger than gold or silver at optical wavelength. It was also assumed that any oxide on top of metallic platform significantly hinders SERS signals. In addition, graphene has not been studied on perforated substrates. Here we use periodically perforated and oxidized aluminum surfaces to examine electrical and optical properties of multi layered graphene. Linear and nonlinear optical methods were used to characterize single and multi layered structures.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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References

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