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Proceedings Paper

Nanomaterials fabrication and physics
Author(s): Z. F. Ren; J. Rybczynski; S. H. Jo; D. Banerjee; S. Chen; D. Z. Wang; J. Y. Huang
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Paper Abstract

We have studied growth of carbon nanotubes by chemical vapor deposition and zinc oxide nanowires by physical vapor deposition on carbon cloth with iron sulfate or stainless steel as a catalyst, and various combinations of carbon source and carrier gases. The field emission of these nanostructures shows a combined result of field enhancement from carbon nanotubes or Zinc oxide nanowires and carbon cloth. An emission current density of 1 mA/cm2 was obtained at 0.4 V/μm and 0.7 V/μm for nanotubes and nanowires, respectively. Field enhancement factor of ~4x104 has been observed. Moreover, electron transport characteristics and structural studies of carbon nanotubes have been investigated. Microscopic observations of electric wall-by-wall breakdown imply that transport in the nanotubes is not ballistic and that a significant scattering occurs as carriers traverse nanotubes length.

Paper Details

Date Published: 23 November 2005
PDF: 10 pages
Proc. SPIE 6002, Nanofabrication: Technologies, Devices, and Applications II, 60020Y (23 November 2005); doi: 10.1117/12.631158
Show Author Affiliations
Z. F. Ren, Boston College (United States)
J. Rybczynski, Boston College (United States)
S. H. Jo, Boston College (United States)
D. Banerjee, Boston College (United States)
S. Chen, Boston College (United States)
D. Z. Wang, Boston College (United States)
J. Y. Huang, Boston College (United States)

Published in SPIE Proceedings Vol. 6002:
Nanofabrication: Technologies, Devices, and Applications II
Warren Y.-C. Lai; Leonidas E. Ocola; Stanley Pau, Editor(s)

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