Determination of the small band gap of carbon nanotubes using the ambipolar random telegraph signal

Fei Liu; Mingqiang Bao; Kang L. Wang; Xiaolei Liu; Chao Li; Chongwu Zhou

doi:10.1021/nl050578c

Determination of the small band gap of carbon nanotubes using the ambipolar random telegraph signal

Fei Liu, Mingqiang Bao, Kang L. Wang, Xiaolei Liu, Chao Li, Chongwu Zhou

College of Electrical Engineering and Computer Science

Research output: Contribution to journal › Article › peer-review

Abstract

The ambipolar random telegraph signal (RTS) (i.e., RTS in both hole conduction at negative gate biases and electron conduction at positive gate biases) is observed in an ambipolar carbon nanotube field-effect transistor (CNT-FET). Then, the ambipolar RTS is used to extract the small band gap of the SWNT. The determination of the small band gap CNT using RTS demonstrates a potentially high accuracy and stability. Other methods are provided to confirm the small band gap of the SWNT.

Original language	English
Pages (from-to)	1333-1336
Number of pages	4
Journal	Nano letters
Volume	5
Issue number	7
DOIs	https://doi.org/10.1021/nl050578c
Publication status	Published - 2005 Jul

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl050578c

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abstract = "The ambipolar random telegraph signal (RTS) (i.e., RTS in both hole conduction at negative gate biases and electron conduction at positive gate biases) is observed in an ambipolar carbon nanotube field-effect transistor (CNT-FET). Then, the ambipolar RTS is used to extract the small band gap of the SWNT. The determination of the small band gap CNT using RTS demonstrates a potentially high accuracy and stability. Other methods are provided to confirm the small band gap of the SWNT.",

author = "Fei Liu and Mingqiang Bao and Wang, {Kang L.} and Xiaolei Liu and Chao Li and Chongwu Zhou",

year = "2005",

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doi = "10.1021/nl050578c",

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AU - Bao, Mingqiang

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AU - Li, Chao

AU - Zhou, Chongwu

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