The current stability of field emission cathodes of carbon nanotubes under ion bombardment | Zendy

Bormashov Vitaly S. | Zendy; Baturin Andrey S. | Zendy; Nikolskiy Konstantin N. | Zendy; Tchesov Roman G. | Zendy; Sheshin Evgeniy P. | Zendy

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The current stability of field emission cathodes of carbon nanotubes under ion bombardment

Author(s) -

Bormashov Vitaly S.,

Baturin Andrey S.,

Nikolskiy Konstantin N.,

Tchesov Roman G.,

Sheshin Evgeniy P.

Publication year - 2007

Publication title -

surface and interface analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.52

H-Index - 90

eISSN - 1096-9918

pISSN - 0142-2421

DOI - 10.1002/sia.2480

Subject(s) - cathode , work function , field electron emission , carbon nanotube , electron , desorption , ion , carbon fibers , instability , degradation (telecommunications) , work (physics) , current (fluid) , materials science , chemical physics , adsorption , analytical chemistry (journal) , nanotechnology , chemistry , atomic physics , composite material , mechanics , physics , thermodynamics , electrical engineering , chromatography , organic chemistry , layer (electronics) , quantum mechanics , engineering , composite number

The degradation mechanism of field emission cathodes based on carbon nanotubes was investigated in the presented work. Emission current instability came from the adsorption/desorption processes on the cathode surface. During the long‐time tests, periodical variation of the electron work‐function (caused by switching on and off of the cathode) was detected. A model is proposed to explain the experimentally observed variations of electron work‐function. Copyright © 2007 John Wiley & Sons, Ltd.

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