Carbon Nanotubes as Schottky Barrier Transistors
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- 15 August 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (10), 106801
- https://doi.org/10.1103/physrevlett.89.106801
Abstract
We show that carbon nanotube transistors operate as unconventional “Schottky barrier transistors,” in which transistor action occurs primarily by varying the contact resistance rather than the channel conductance. Transistor characteristics are calculated for both idealized and realistic geometries, and scaling behavior is demonstrated. Our results explain a variety of experimental observations, including the quite different effects of doping and adsorbed gases. The electrode geometry is shown to be crucial for good device performance.Keywords
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