Controlled growth of carbon nanotubes on electrodes under different bias polarity

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

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Carbon nanotubes (CNTs) of different alignments, such as surface-bounded and vertically aligned arrays, enable applications in different fields. In this study, controlled growth of CNTs with different alignments was achieved by electrically biasing catalyzed electrodes with different polarities in a laser-assisted chemical vapor deposition process. CNT growth was suggested to be guided by the movement of electrically charged catalyst-nanoparticles under the influence of an external electric field. This discovery provides a convenient approach to control the alignment of CNT arrays for different applications.

Original languageEnglish (US)
Article number143117
JournalApplied Physics Letters
Volume95
Issue number14
DOIs
StatePublished - Oct 19 2009

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polarity
carbon nanotubes
electrodes
alignment
vapor deposition
catalysts
nanoparticles
electric fields
lasers

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Controlled growth of carbon nanotubes on electrodes under different bias polarity. / Gao, Y.; Zhou, Y. S.; Xiong, W.; Mahjouri-Samani, M.; Mitchell, M.; Lu, Y. F.

In: Applied Physics Letters, Vol. 95, No. 14, 143117, 19.10.2009.

Research output: Contribution to journalArticle

Gao, Y. ; Zhou, Y. S. ; Xiong, W. ; Mahjouri-Samani, M. ; Mitchell, M. ; Lu, Y. F. / Controlled growth of carbon nanotubes on electrodes under different bias polarity. In: Applied Physics Letters. 2009 ; Vol. 95, No. 14.
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