Issue 16, 2014

Exploring the relative bending of a CVD graphene monolayer with gap-plasmons

Abstract

We report a spectroscopic indicator showing the bending of a chemical vapor deposition (CVD) graphene monolayer on Cu foil or an arbitrary substrate after transfer. Using a Au nanoparticle (NP)–graphene monolayer–Au thin film (TF) junction system, the Radial Breathing-Like Mode (RBLM) Raman signal from the sandwiched graphene monolayer is evidently observed by employing a local z-polarized incident field formed at the Au NP–Au TF junction. We also utilized the RBLM intensity as a quantitative tool with a wide dynamic range (∼300%) compared to the 2D peak width (∼35%) for determining the relative degree of bending on the Au TF substrate. The RBLM signal from the CVD graphene monolayer is anticipated to be used as a valuable marker in exploring out-of-plane directional properties.

Graphical abstract: Exploring the relative bending of a CVD graphene monolayer with gap-plasmons

Supplementary files

Article information

Article type
Paper
Submitted
24 Mar 2014
Accepted
16 May 2014
First published
09 Jul 2014

Nanoscale, 2014,6, 9763-9766

Exploring the relative bending of a CVD graphene monolayer with gap-plasmons

Y. H. Min and W. Park, Nanoscale, 2014, 6, 9763 DOI: 10.1039/C4NR01586J

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