Modulated chemical doping of individual carbon nanotubes.
Science
; 290(5496): 1552-5, 2000 Nov 24.
Article
em En
| MEDLINE
| ID: mdl-11090348
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.
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01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article