Electronic transport properties of junctions between carbon nanotubes and graphene nanoribbons

Using the tight-binding model and Green’s function method, we studied the electronic transport of four kinds of nanotube-graphene junctions. The results show the transport properties depend on both types of the carbon nanotube and graphene nanoribbon, metal or semiconducting. Moreover, the defect at...

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Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2011-10, Vol.83 (4), p.487-492
Main Authors: Ma, K. L., Yan, X. H., Guo, Y. D., Xiao, Y.
Format: Article
Language:English
Subjects:
Analysis
Complex Systems
Condensed Matter Physics
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals
Electronic transport in multilayers, nanoscale materials and structures
Exact sciences and technology
Fluid- and Aerodynamics
Graphene
Graphite
Nanoscale contacts
Nanotubes
Physics
Physics and Astronomy
Regular Article
Solid State Physics
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Summary:Using the tight-binding model and Green’s function method, we studied the electronic transport of four kinds of nanotube-graphene junctions. The results show the transport properties depend on both types of the carbon nanotube and graphene nanoribbon, metal or semiconducting. Moreover, the defect at the nanotube-graphene interface did not affect the conductance of the whole system at the Fermi level. In the double junction of nanotube/nanoribbon/nanotube, quasibound states are found, which cause antiresonance and result in conductance dips.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2011-20313-9