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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)1333-1336
Number of pages4
JournalNano letters
Volume5
Issue number7
DOIs
Publication statusPublished - 2005 Jul

All Science Journal Classification (ASJC) codes

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

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