Open AccessElectronic transport properties of single-wall carbon nanotube with pentagon-heptagon-pair defect
Author(s) -
Hui Zeng,
Huifang Hu,
Jianwei Wei,
Fei Xie,
Ping Peng
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.4822
Subject(s) - carbon nanotube , pentagon , materials science , heterojunction , nanotube , density functional theory , molecular physics , nanotechnology , chemical physics , condensed matter physics , physics , quantum mechanics , optoelectronics , geometry , mathematics
Using the density-functional theory in combination with nonequilibrium Green's function technique, we studied the densities of states and transport properties of the(70)—(80)and(80)—(90)single-wall carbon-nanotube heterojunctions containing one pentagon-heptagon-pair (5/7) topological defect. The result suggests that the effect of pentagon-heptagon-pairs (5/7) topological defects on carbon nanotubes is remarkable.In addition, the heterojunctions constituted by different types of carbon nanotubes also have different characteristics.