Laser induced selective removal of metallic carbon nanotubes

M. Mahjouri-Samani, Y. S. Zhou, W. Xiong, Y. Gao, M. Mitchell, Yongfeng Lu

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Distinguishing between carbon nanotubes (CNTs) according to their individual electronic properties is of significant importance for developing CNT-based electronics and devices. In this study, selective removal of metallic CNTs from CNT mixtures on silicon substrates was investigated using controlled laser irradiation. Free electron movement and eddy currents are induced within the metallic CNTs by the strong electric field and optical near-field effects caused by the laser irradiation. Selective heating of metallic CNTs in air results in selective removal of metallic CNTs when the laser fluence and wavelength are properly selected. Through this process, metallic nanotubes are successfully removed from the CNT mixtures. This technique provides an efficient single-step approach for selective removal of metallic CNTs from CNT mixtures.

Original languageEnglish (US)
Article number495202
JournalNanotechnology
Volume20
Issue number49
DOIs
StatePublished - Nov 25 2009

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Lasers
Laser beam effects
Silicon
Eddy currents
Electronic properties
Nanotubes
Electronic equipment
Electric fields
Heating
Wavelength

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Mahjouri-Samani, M., Zhou, Y. S., Xiong, W., Gao, Y., Mitchell, M., & Lu, Y. (2009). Laser induced selective removal of metallic carbon nanotubes. Nanotechnology, 20(49), [495202]. https://doi.org/10.1088/0957-4484/20/49/495202

Laser induced selective removal of metallic carbon nanotubes. / Mahjouri-Samani, M.; Zhou, Y. S.; Xiong, W.; Gao, Y.; Mitchell, M.; Lu, Yongfeng.

In: Nanotechnology, Vol. 20, No. 49, 495202, 25.11.2009.

Research output: Contribution to journalArticle

Mahjouri-Samani, M, Zhou, YS, Xiong, W, Gao, Y, Mitchell, M & Lu, Y 2009, 'Laser induced selective removal of metallic carbon nanotubes', Nanotechnology, vol. 20, no. 49, 495202. https://doi.org/10.1088/0957-4484/20/49/495202
Mahjouri-Samani M, Zhou YS, Xiong W, Gao Y, Mitchell M, Lu Y. Laser induced selective removal of metallic carbon nanotubes. Nanotechnology. 2009 Nov 25;20(49). 495202. https://doi.org/10.1088/0957-4484/20/49/495202
Mahjouri-Samani, M. ; Zhou, Y. S. ; Xiong, W. ; Gao, Y. ; Mitchell, M. ; Lu, Yongfeng. / Laser induced selective removal of metallic carbon nanotubes. In: Nanotechnology. 2009 ; Vol. 20, No. 49.
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