TITLE

Self-embedded nanocrystalline chromium carbides on well-aligned carbon nanotips

AUTHOR(S)
Tsai, C. L.; Hsu, J. H.; Chen, C. F.
PUB. DATE
June 2003
SOURCE
Applied Physics Letters;6/16/2003, Vol. 82 Issue 24, p4337
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Well-aligned carbon nanotips embedded with nanocrystalline chromium carbide were directly grown on a substrate by microwave plasma chemical vapor deposition. These nanomaterials grew up to about 1 μm long and 60 nm in diameter, yielding a high aspect ratio. In comparison between carbon nanotubes with hollow structure, transmission electron microscopy images show its solid body, which is made of graphite along with nanocrystalline chromium carbide on the tip. These nanomaterials perform well in field emission applications with a turn-on field of 1.38 V/μ m and 565 μA/cm[SUP2] at 2.2 V/μm. Our result confirms the possibility of the self-embedded nanocrystalline materials on the top of carbon nanotips.
ACCESSION #
9987376

 

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