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Field emission from short and stubby vertically aligned carbon nanotubes (2001)

Chhowalla, M. ; Ducati, C. ; Rupesinghe, N. L. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 79 (2001), S. 2079-2081

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: Electron emission from vertically aligned carbon nanotubes grown by plasma enhanced chemical vapor deposition has been measured using a parallel plate anode and a 1 μm tungsten probe. The field emission characteristics were measured as a function of the nanotube diameter, length, and areal density. It was found that less densely populated "short and stubby" nanotubes with diameters of 200 nm and heights of 0.7 μm showed the best emission characteristics with a threshold voltage of 2 V/μm and saturation emission current density of 10 mA/cm2. A triple junction between nanotube, substrate, and vacuum is proposed to explain our results.© 2001 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1406557

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