期刊
NANO RESEARCH
卷 1, 期 5, 页码 361-394出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-008-8043-2
关键词
Graphene; charge transport; carbon nanotubes
类别
资金
- ANR/PNANO
- FP7/ICT/FET
- CARNOT Institute-Leti
- European Union [IST-021285]
- Volkswagen Stiftung [I/78 340]
- DFG [SPP1243]
- DAAD
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.
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