Laser-assisted selective removal of metallic carbon nanotubes

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon nanotubes (CNTs) are ideal building blocks for future nanoelectronic devices. CNTs of different electrical properties, metallic and semiconducting, find applications in different fields. However, current techniques for growing CNTs yield CNT mixtures of both electrical types, which have limited the applications of CNTs in electronics. In this study, selective removal of multi-walled and metallic single-walled carbon nanotubes (MWNTs and m-SWNTs) from CNT mixtures was realized using controlled laser irradiations. Due to their sub-wavelength size and free electrons, electron motions and eddy currents can be generated and significantly enhanced by strong electric fields in laser beams and optical near field effects, resulting in selective heating and removing process. With this approach, samples of pure s-SWNT arrays were obtained. This technique provides a laser-based single-step approach for selectively removing MWNTs and m-SWNTs from CNT mixtures.

Original languageEnglish (US)
Title of host publicationICALEO 2009 - 28th International Congress on Applications of Lasers and Electro-Optics, Congress Proceedings
PublisherLaser Institute of America
Pages1377-1381
Number of pages5
ISBN (Print)9780912035598
DOIs
StatePublished - 2009
Event28th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2009 - Orlando, FL, United States
Duration: Nov 2 2009Nov 5 2009

Publication series

NameICALEO 2009 - 28th International Congress on Applications of Lasers and Electro-Optics, Congress Proceedings
Volume102

Conference

Conference28th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2009
CountryUnited States
CityOrlando, FL
Period11/2/0911/5/09

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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  • Cite this

    Mahjouri-Samani, M., Zhou, Y. S., Xiong, W., Gao, Y., Mitchell, M., & Lu, Y. F. (2009). Laser-assisted selective removal of metallic carbon nanotubes. In ICALEO 2009 - 28th International Congress on Applications of Lasers and Electro-Optics, Congress Proceedings (pp. 1377-1381). (ICALEO 2009 - 28th International Congress on Applications of Lasers and Electro-Optics, Congress Proceedings; Vol. 102). Laser Institute of America. https://doi.org/10.2351/1.5061502