Cables of BN-insulated B–C–N nanotubes
- 20 February 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 82 (8), 1275-1277
- https://doi.org/10.1063/1.1555713
Abstract
Nanotubular ropes composed of aligned multiwalled nanotubes having electrically insulating BN-rich outer shells and semiconducting B–C–N inner shells were synthesized through the reaction of aligned nanotube mats with boron oxide and nitrogen at ∼2000–2110 K. The atomic structure and chemical composition of the ropes were analyzed by high-resolution transmission and energy-filtered (Omega filter) electron microscopy. Individual ropes display perfect insulating performance of BN-rich outer layers and excellent field emission and thus conductive properties of inner B–C–N layers. A semiconducting nanometer-scale cable with built-in electrical insulation has thus been realized.
Keywords
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