We have developed high-current density field emission sources using arrays of multiwalled carbon nanotube bundles. The field emission behavior of a variety of lithographically patterned array geometries was investigated and the arrays of and -diameter nanotube bundles spaced apart (edge-to-edge spacing) were identified as the most optimum combination, routinely producing at low electric fields of approximately , rising to at over a -diameter area. We have found that the field emission performance depends strongly on the bundle diameter and interbundle spacing and such arrays perform significantly better in field emission than ordered arrays of isolated nanotubes or dense, continuous mats of nanotubes previously reported in literature.
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January 2005
This content was originally published in
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
Research Article|
January 05 2005
High-current-density field emitters based on arrays of carbon nanotube bundles
Harish M. Manohara;
Harish M. Manohara
Jet Propulsion Laboratory
, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109
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Michael J. Bronikowski;
Michael J. Bronikowski
a)
Jet Propulsion Laboratory
, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109
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Michael Hoenk;
Michael Hoenk
Jet Propulsion Laboratory
, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109
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Brian D. Hunt;
Brian D. Hunt
Jet Propulsion Laboratory
, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109
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Peter H. Siegel
Peter H. Siegel
Jet Propulsion Laboratory
, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109
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a)
Author to whom correspondence should be addressed; electronic mail: Michael.J.Bronikowski@jpl.nasa.gov
J. Vac. Sci. Technol. B 23, 157–161 (2005)
Article history
Received:
September 16 2004
Accepted:
November 29 2004
Citation
Harish M. Manohara, Michael J. Bronikowski, Michael Hoenk, Brian D. Hunt, Peter H. Siegel; High-current-density field emitters based on arrays of carbon nanotube bundles. J. Vac. Sci. Technol. B 1 January 2005; 23 (1): 157–161. https://doi.org/10.1116/1.1850103
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