Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 5, Issue 23, Pages 12238-12243Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am403386a
Keywords
field emission; carbon-carbon composite; porous DLC; low threshold voltage; aligned nanotubes; DLC
Funding
- Brazilian agency CNPq [202439/2012-7]
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A thin diamond-like carbon (DLC) film was deposited onto a densely packed forest of vertically aligned multiwalled carbon nanotubes (VACNT). DLC deposition caused the tips of the CNTs to clump together to form a microstructured surface. Field-emission tests of this new composite material show the typical low threshold voltages for carbon nanotube structures (2 V mu m(-1)) but with greatly increased emission current, better stability, and longer lifetime.
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