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Issue 37, 2015

Gain and Raman line-broadening with graphene coated diamond-shape nano-antennas

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Abstract

Using Surface Enhanced Raman Scattering (SERS), we report on intensity-dependent broadening in graphene-deposited broad-band antennas. The antenna gain curve includes both the incident frequency and some of the scattered mode frequencies. By comparing antennas with various gaps and types (bow-tie vs. diamond-shape antennas) we make the case that the line broadening did not originate from strain, thermal or surface potential. Strain, if present, further shifts and broadens those Raman lines that are included within the antenna gain curve.

Graphical abstract: Gain and Raman line-broadening with graphene coated diamond-shape nano-antennas

Supplementary files

Article information


Submitted
12 Jun 2015
Accepted
21 Aug 2015
First published
26 Aug 2015

Nanoscale, 2015,7, 15321-15331
Article type
Paper
Author version available

Gain and Raman line-broadening with graphene coated diamond-shape nano-antennas

C. Paraskevaidis, T. Kuykendall, M. Melli, A. Weber-Bargioni, P. J. Schuck, A. Schwartzberg, S. Dhuey, S. Cabrini and H. Grebel, Nanoscale, 2015, 7, 15321 DOI: 10.1039/C5NR03893F

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