TY - JOUR
T1 - Low-energy electronic structures of nanotube-graphene hybrid carbon systems
AU - Ho, Y. H.
AU - Chiu, Y. H.
AU - Lu, J. M.
AU - Lin, M. F.
N1 - Funding Information:
This work was supported by the NSC and NCTS of Taiwan, under the Grant nos. NSC 97-2112-M-110-001-MY2 and NSC 98-2811-M-110-008.
PY - 2010/2
Y1 - 2010/2
N2 - Electronic structures of nanotube-graphene hybrid carbon systems are calculated by the tight-binding model. The Lennard-Jones potential is used to determine the optimal geometry between nanotubes and a monolayer graphene. The periodic alignment of nanotubes on graphene results in quasi-one-dimensional physical phenomena. The low-frequency energy dispersions are significantly influenced by the interlayer interactions, such as the removal of subband degeneracy, creation of extra band-edge states, and modulation of energy gaps. The composite systems could be either metals or semiconductors according to the alignment and geometry of nanotubes.
AB - Electronic structures of nanotube-graphene hybrid carbon systems are calculated by the tight-binding model. The Lennard-Jones potential is used to determine the optimal geometry between nanotubes and a monolayer graphene. The periodic alignment of nanotubes on graphene results in quasi-one-dimensional physical phenomena. The low-frequency energy dispersions are significantly influenced by the interlayer interactions, such as the removal of subband degeneracy, creation of extra band-edge states, and modulation of energy gaps. The composite systems could be either metals or semiconductors according to the alignment and geometry of nanotubes.
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U2 - 10.1016/j.physe.2009.10.043
DO - 10.1016/j.physe.2009.10.043
M3 - Article
AN - SCOPUS:76949099853
SN - 1386-9477
VL - 42
SP - 744
EP - 747
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 4
ER -