Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 2, Issue 19, Pages 2487-2498Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz200426d
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Funding
- DOD/DMEA [H94003-09-2-0901, H94003-09-2-1003]
- NSF-MRSEC [DMR-0820382]
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The atomically flat surface of graphene provides an opportunity to apply carbon-carbon bond-forming chemical reactions to engineer the electronic properties of graphene circuitry. In particular, covalent functionalization of the surface or the edge of graphene ribbons provides a novel way to introduce patterning that can modulate the energy band gap, affect electron scattering, and direct current flow by producing dielectric regions in a graphene wafer. We discuss the use of Raman spectroscopy and scanning tunneling microscopy to characterize the surface functionalization periodicities and densities that have been produced by the chemical derivatization of epitaxial graphene together with the concomitant changes in the electronic and magnetic properties of the graphene surface layer.
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