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Registry-Induced Electronic Superstructure in Double-Walled Carbon Nanotubes, Associated with the Interaction between Two Graphene-Like Monolayers
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Tison, Yann, Giusca, Cristina E., Sloan, Jeremy and Silva, S. Ravi P. (2008) Registry-Induced Electronic Superstructure in Double-Walled Carbon Nanotubes, Associated with the Interaction between Two Graphene-Like Monolayers. ACS Nano, Vol. 2 (No. 10). pp. 2113-2120. doi:10.1021/nn800483k ISSN 1936-0851.
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Official URL: http://dx.doi.org/10.1021/nn800483k
Abstract
Prior to the implementation of multi-walled carbon nanotubes in microelectronic devices, investigating their electronic structure down to the nanometer scale is necessary. In that prospect, we used scanning tunneling microscopy (STM) to study the detailed atomic scale structure of double-walled carbon nanotubes, each comprising two rolled monolayers of graphene. Atomically resolved STM images usually displayed a motif and periodicity similar to that found in graphite but, on selected regions, atomically resolved motifs with a clearly defined superstructure were observed. This phenomenon has been reported previously but without a suitable explanation. We discuss the origin of this behavior in terms of modified stacking sequences due to the mismatch in registry between the chiral angles of the inner and the outer shells, associated with the interaction between the two carbon monolayers. These phenomena must be taken into account for the realization of lateral interference devices based on carbon nanotubes or graphene layers.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | ACS Nano | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 1936-0851 | ||||
Official Date: | 2008 | ||||
Dates: |
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Volume: | Vol. 2 | ||||
Number: | No. 10 | ||||
Page Range: | pp. 2113-2120 | ||||
DOI: | 10.1021/nn800483k | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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