The transport properties of carriers in semiconducting graphene nanoribbons are studied by comparing the effects of phonon, impurity, and line-edge roughness scattering. It is found that scattering from impurities located at the surface of nanoribbons and from acoustic phonons are as important as line-edge roughness scattering. The relative importance of these scattering mechanisms varies with ...

Graphene family materials, including graphene quantum dots (GQDs), graphene nanoribbons (GNRs) and 3D graphene (3D-G), have attracted much research interest for the oxygen reduction reaction (ORR) in fuel cells and metal-air batteries, due to their unique structural characteristics, such as abundant activate sites, edge effects and the interconnected network. In this review, we summarize recent...

Graphene nanoribbons display an imperfectly understood transport gap. We measure transport through nanoribbon devices of several lengths. In long (>/=250 nm) nanoribbons we observe transport through multiple quantum dots in series, while shorter (</=60 nm) constrictions display behavior characteristic of single and double quantum dots. New measurements indicate that dot size may scale with cons...

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Jan Wilhelm,1,2,* Michael Walz,1,2 and Ferdinand Evers3 1Institute of Nanotechnology, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany 2Institut für Theorie der Kondensierten Materie, Karlsruhe Institute of Technology, D-76128 Karlsruhe, Germany 3Institute for Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany (Received 9 April 2015; published...