Raman spectroscopy of graphene: doping and mapping
Bajuk-Bogdanović, Danica V.
Holclajtner-Antunović, Ivanka D.
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In this study, graphene samples prepared by mechanical exfoliation were examined by Raman spectroscopy. The Au electrical contacts, fabricated using photolithography, allowed the application of a gate voltage between graphene and the Si substrate. In the Raman spectra of the sample, we observed shifts of position, changes of intensity and the width variations of the G and 2D peaks with the change of the gate voltage. Spatial Raman mapping of the samples was performed showing variations in intensities of the Raman peaks in different flake regions.
Source:Physica Scripta, 2013, T157
- Physics of Ordered Nanostructures and New Materials in Photonics (RS-171005)
- Nanostructured multifunctional materials and nanocomposites (RS-45018)
- European Community [228637 NIM NIL]
- 3rd International Conference on the Physics of Optical Materials and Devices, Sep 02-06, 2012, Belgrade, Serbia