Issue 47, 2014

Investigation of out-of-plane structural properties of a graphene monolayer with gap-plasmons: mode-selective Raman enhancement and the influence of additional sp3 type defects

Abstract

We report that Raman enhancements of a graphene monolayer sandwiched at the Au nanoparticle–Au thin film junction are different and can be attributed to the influence of a z-polarized incident field. Closer to the center of the junction, radial breathing like-mode (RBLM) shows dramatic Raman enhancement in terms of the coincidence between the z-polarized incident field formed at the junction and the RBLM phonon axis. The appearance of an additional D* peak can be identified and is attributed to the additional out-of-plane sp3 type defect signal. Correlating I(D*)/I(D) with RBLM intensity variation further substantiates that the observed D* peak is ascribed to another out-of-plane structural defect signal.

Graphical abstract: Investigation of out-of-plane structural properties of a graphene monolayer with gap-plasmons: mode-selective Raman enhancement and the influence of additional sp3 type defects

Supplementary files

Article information

Article type
Paper
Submitted
17 Sep 2014
Accepted
24 Oct 2014
First published
04 Nov 2014

Phys. Chem. Chem. Phys., 2014,16, 26385-26388

Investigation of out-of-plane structural properties of a graphene monolayer with gap-plasmons: mode-selective Raman enhancement and the influence of additional sp3 type defects

Y. H. Min and W. Park, Phys. Chem. Chem. Phys., 2014, 16, 26385 DOI: 10.1039/C4CP04173A

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