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- Title
Electrical Applications for Novel Carbon Nanotube Morphologies: Does Function Follow Shape?
- Authors
Bandaru, Prabhakar R.; Rao, Apparao M.
- Abstract
Nanoscience promises a future of novel devices and technologies that harness the atomic or molecular structure of matter. An intriguing manifestation of this paradigm is in the electrical properties of nonlinear carbon nanotube (CNT) morphologies, such as nanocoils/helices and branched forms, which exploit novel functionality at the nanoscale. For example, in a Y-CNT, the junction region can posses a charge due to the necessary presence of topological defects and catalyst particles. The resultant induced charge and asymmetry is analogous to "gating" that could be harnessed for electrical modulation and switching. Helical morphologies, in addition to use as electrical inductors, could be pertinent for a new type of electronic architecture wherein a coil could correspond to a sequence of junctions with alternating metallic and semiconducting character. While these alternative departure from the conventional architectures, the exact underlying mechanism of self-gated switching behavior is yet to be clearly understood.
- Subjects
CARBON nanotubes; NANOSCIENCE; ELECTRONIC modulation; ELECTRIC switchgear; ELECTRONIC equipment
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2007, Vol 59, Issue 3, p33
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-007-0036-1