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Thermionic Emission of Single-Wall Carbon Nanotubes MeasuredResearchers at the NASA Glenn Research Center, in collaboration with the Rochester Institute of Technology, have investigated the thermionic properties of high-purity, single-wall carbon nanotubes (SWNTs) for use as electron-emitting electrodes. Carbon nanotubes are a recently discovered material made from carbon atoms bonded into nanometer-scale hollow tubes. Such nanotubes have remarkable properties. An extremely high aspect ratio, as well as unique mechanical and electronic properties, make single-wall nanotubes ideal for use in a vast array of applications. Carbon nanotubes typically have diameters on the order of 1 to 2 nm. As a result, the ends have a small radius of curvature. It is these characteristics, therefore, that indicate they might be excellent potential candidates for both thermionic and field emission.
Document ID
20050192272
Acquisition Source
Glenn Research Center
Document Type
Other
Authors
Landis, Geoffrey A.
(NASA Glenn Research Center Cleveland, OH, United States)
Krainsky, Isay L.
(NASA Glenn Research Center Cleveland, OH, United States)
Bailey, Sheila G.
(NASA Glenn Research Center Cleveland, OH, United States)
Elich, Jeffrey M.
(NASA Glenn Research Center Cleveland, OH, United States)
Landi, Brian J.
(NASA Glenn Research Center Cleveland, OH, United States)
Gennett, Thomas
(NASA Glenn Research Center Cleveland, OH, United States)
Raffaelle, Ryne P.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
May 1, 2004
Publication Information
Publication: Research and Technology 2003
Subject Category
Electronics And Electrical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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