A fully tunable single-walled carbon nanotube diode.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 21413780.
- Also identified by DOI 10.1021/nl200371z.
- No licence information is recorded for this record.
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Abstract
We demonstrate a fully tunable diode structure utilizing a fully suspended single-walled carbon nanotube. The diode's turn-on voltage under forward bias can be continuously tuned up to 4.3 V by controlling gate voltages, which is ∼6 times the nanotube band gap energy. Furthermore, the same device design can be configured into a backward diode by tuning the band-to-band tunneling current with gate voltages. A nanotube backward diode is demonstrated for the first time with nonlinearity exceeding the ideal diode. These results suggest that a tunable nanotube diode can be a unique building block for developing next generation programmable nanoelectronic logic and integrated circuits.
Medical subject headings
- Nanotubes, Carbon
- Semiconductors