Three-terminal carbon nanotube junctions: Current-voltage characteristics

L. W. Liu*, J. H. Fang, L. Lu, F. Zhou, H. F. Yang, A. Z. Jin, C. Z. Gu

*Corresponding author for this work

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Abstract

A T-type three-terminal junction made of two as-grown semiconducting single-walled carbon nanotubes was fabricated with two electrodes attached to each terminal. It is found that the symmetric current-voltage characteristic along one nanotube can be turned to asymmetric by applying a voltage to the second nanotube acting as a local gate electrode-a property that can be used to form only nanotube-based transistors and amplifiers. Our analysis shows that an asymmetric geometry is essential for devices of this kind to exhibit such a function. More significant rectification behavior has also been observed across the end-bulk junction of the two nanotubes in the presence of a negative backgate voltage.

Original languageEnglish
Article number155424
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number15
DOIs
Publication statusPublished - 2005
Externally publishedYes

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Liu, L. W., Fang, J. H., Lu, L., Zhou, F., Yang, H. F., Jin, A. Z., & Gu, C. Z. (2005). Three-terminal carbon nanotube junctions: Current-voltage characteristics. Physical Review B - Condensed Matter and Materials Physics, 71(15), Article 155424. https://doi.org/10.1103/PhysRevB.71.155424