Modulated Chemical Doping of Individual Carbon Nanotubes
Top Cited Papers
- 24 November 2000
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 290 (5496), 1552-1555
- https://doi.org/10.1126/science.290.5496.1552
Abstract
Modulation doping of a semiconducting single-walled carbon nanotube along its length leads to an intramolecular wire electronic device. The nanotube is doped n -type for half of its length and p -type for the other half. Electrostatic gating can tune the system into p - n junctions, causing it to exhibit rectifying characteristics or negative differential conductance. The system can also be tuned into n -type, exhibiting single-electron charging and negative differential conductance at low temperatures. The low-temperature behavior is manifested by a quantum dot formed by chemical inhomogeneity along the tube.Keywords
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