Nano Archive

Charge transport in disordered graphene-based low dimensional materials

Cresti, Alessandro and Nemec, Norbert and Biel, Blanca and Niebler, Gabriel and Triozon, Francois and Cuniberti, Gianaurelio and Roche, Stephan (2010) Charge transport in disordered graphene-based low dimensional materials. Nano Research, 1 (5). pp. 361-394. ISSN 1998-0124 (Print) 1998-0000 (Online)


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Two-dimensional graphene, carbon nanotubes, and graphene nanoribbons represent a novel class of low dimensional materials that could serve as building blocks for future carbon-based nanoelectronics. Although these systems share a similar underlying electronic structure, whose exact details depend on confinement effects, crucial differences emerge when disorder comes into play. In this review, we consider the transport properties of these materials, with particular emphasis on the case of graphene nanoribbons. After summarizing the electronic and transport properties of defect-free systems, we focus on the effects of a model disorder potential (Anderson-type), and illustrate how transport properties are sensitive to the underlying symmetry. We provide analytical expressions for the elastic mean free path of carbon nanotubes and graphene nanoribbons, and discuss the onset of weak and strong localization regimes, which are genuinely dependent on the transport dimensionality. We also consider the effects of edge disorder and roughness for graphene nanoribbons in relation to their armchair or zigzag orientation.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:8410
Deposited By:JNCASR
Deposited On:06 Apr 2010 05:43
Last Modified:14 May 2010 14:17

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