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Growth and characterization of aligned carbon nanotubes from patterned nickel nanodots and uniform thin films

Published online by Cambridge University Press:  31 January 2011

J. G. Wen
Affiliation:
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
Z. P. Huang
Affiliation:
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
D. Z. Wang
Affiliation:
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
J. H. Chen
Affiliation:
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
S. X. Yang
Affiliation:
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
Z. F. Ren*
Affiliation:
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
J. H. Wang
Affiliation:
Department of Chemistry, State University of New York, Buffalo, New York 14260
L. E. Calvet
Affiliation:
Departments of Applied Physics, Electrical Engineering and Physics, Yale University, New Haven, Connecticut 06520–8284
J. Chen
Affiliation:
Departments of Applied Physics, Electrical Engineering and Physics, Yale University, New Haven, Connecticut 06520–8284
J. F. Klemic
Affiliation:
Departments of Applied Physics, Electrical Engineering and Physics, Yale University, New Haven, Connecticut 06520–8284
M. A. Reed
Affiliation:
Departments of Applied Physics, Electrical Engineering and Physics, Yale University, New Haven, Connecticut 06520–8284
*
a) Address all correspondence to this author. e-mail: renzh@bc.edu
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Abstract

Microstructures of well-aligned multiwall carbon nanotubes grown on patterned nickel nanodots and uniform thin films by plasma-enhanced chemical vapor deposition have been studied by electron microscopy. It was found that growth of carbon nanotubes on patterned nickel nanodots and uniform thin films is different. During growth of carbon nanotubes, a nickel particle sits at the tip of each nanotube, and its [220] is preferentially oriented along the plasma direction, which can be explained by a channeling effect of ions coming into nickel particles in plasma. The alignment of nanotubes is induced by the electrical field direction relative to substrate surface.

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Articles
Copyright
Copyright © Materials Research Society 2001

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