Jump to main content
Jump to site search

Issue 105, 2014
Previous Article Next Article

The effect of a thin gold layer on graphene: a Raman spectroscopy study

Author affiliations

Abstract

An understanding of interactions between graphene and its surroundings is crucial for application of graphene in electronic devices. Raman spectroscopy is a convenient and efficient tool to provide information about the doping, stress and defects in graphene; however application of this method is limited to the Si/SiO2 substrate which provides interference enhancement. Here we present a comprehensive Raman study of the single-layer graphene – sapphire – gold system. Due to plasmons generated in the gold-layer the Raman signal of graphene is significantly enhanced. We study the influence of the gold layer thickness and gold particle size on the enhancement. The analysis of the Raman maps showed that graphene on sapphire is only slightly doped and the spatial distribution of doping is quite homogenous. Also no significant strain was generated in graphene sandwiched by sapphire and gold.

Graphical abstract: The effect of a thin gold layer on graphene: a Raman spectroscopy study

Back to tab navigation

Supplementary files

Article information


Submitted
26 Sep 2014
Accepted
06 Nov 2014
First published
10 Nov 2014

RSC Adv., 2014,4, 60929-60935
Article type
Paper
Author version available

The effect of a thin gold layer on graphene: a Raman spectroscopy study

M. Kalbac, V. Vales and J. Vejpravova, RSC Adv., 2014, 4, 60929
DOI: 10.1039/C4RA11270A

Social activity

Search articles by author

Spotlight

Advertisements