Regensburg 2010 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 52: Graphene II

O 52.9: Vortrag

Mittwoch, 24. März 2010, 17:00–17:15, H31

Resonant Raman scattering of chemically functionalized graphene — •Nils Scheuschner¹, Dimitrios Tasis², Kostas Papagelis², and Janina Maultzsch¹ — ¹Institut für Festkörperphysik, TU Berlin, Germany — ²Materials Science Department, University of Patras, 26504 Patras, Greece

We present resonant Raman scattering of graphene functionalized with polyvinylalcohol (PVA). Raman spectroscopy is a powerful tool for characterization of carbon nanostructures. Functionalization of graphene is a promising way to modify its electronic structure, for example in order to open a band gap. To study the interaction between PVA and graphene with respect to their electronic and vibrational structure, we analyse the Raman spectra of the G mode and the double resonant defect mode. Furthermore, we use tip-enhanced Raman spectroscopy (TERS) for structural and spectroscopic information with high spatial resolution of the sample.