Nano Archive

Theoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes

Ho, Xinning and Ye, Lina and Rotkin, Slava V. and Xie, Xu and Du, Frank and Dunham, Simon and Zaumseil, Jana and Rogers, John A. (2010) Theoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes. Nano Research, 3 (6). pp. 444-451.

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Official URL: http://www.springerlink.com/content/pw54209l453368...

Abstract

We present theoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes. A simple physical model, taking into account the basic physics of current rectification, can adequately describe the single-tube and array devices. We show that for as-grown array diodes, the rectification ratio, defined by the maximum-to-minimum-current-ratio, is low due to the presence of metallic-single-walled nanotube (SWNT) shunts. These tubes can be eliminated in a single voltage sweep resulting in a high rectification array device. Further analysis also shows that the channel resistance, and not the intrinsic nanotube diode properties, limits the rectification in devices with channel length up to 10 μm.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:9351
Deposited By:JNCASR
Deposited On:04 Oct 2010 12:10
Last Modified:04 Oct 2010 12:10

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