| Autor: |
Lee WK; U.S. Naval Research Laboratory, Washington, DC 20375, USA. woo.lee@nrl.navy.mil, Haydell M, Robinson JT, Laracuente AR, Cimpoiasu E, King WP, Sheehan PE |
| Jazyk: |
angličtina |
| Zdroj: |
ACS nano [ACS Nano] 2013 Jul 23; Vol. 7 (7), pp. 6219-24. Date of Electronic Publication: 2013 Jun 17. |
| DOI: |
10.1021/nn4021746 |
| Abstrakt: |
Graphene nanoribbons (GNRs) would be the ideal building blocks for all carbon electronics; however, many challenges remain in developing an appropriate nanolithography that generates high-quality ribbons in registry with other devices. Here we report direct and local fabrication of GNRs by thermochemical nanolithography, which uses a heated AFM probe to locally convert highly insulating graphene fluoride to conductive graphene. Chemically isolated GNRs as narrow as 40 nm show p-doping behavior and sheet resistances as low as 22.9 KΩ/□ in air, only approximately 10× higher than that of pristine graphene. The impact of probe temperature and speed are examined as well as the variable-temperature transport properties of the GNR. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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