Increased Efficiency and Duration of Emission from Carbon Nanotubes Processed in Ammonia Plasma

A technique for obtaining carbon nanotubes (CNTs) doped with nitrogen in ammonia plasma has been developed. In this technique, CNTs synthesized by a method excluding their doping with nitrogen are post-treated in ammonia plasma. This treatment leads to a more than fivefold increase in the concentrat...

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Bibliographic Details
Published in:Technical physics letters 2020-10, Vol.46 (10), p.996-999
Main Authors: Bulyarskiy, S. V., Belov, V. S., Kitsyuk, E. P., Lakalin, A. V., Molodenskii, M. S., Pavlov, A. A., Ryazanov, R. M., Terent’ev, A. V., Shamanaev, A. A.
Format: Article
Language:English
Subjects:
Ammonia
Carbon nanotubes
Classical and Continuum Physics
Electron emission
Nitrogen
Physics
Physics and Astronomy
Work functions
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Summary:A technique for obtaining carbon nanotubes (CNTs) doped with nitrogen in ammonia plasma has been developed. In this technique, CNTs synthesized by a method excluding their doping with nitrogen are post-treated in ammonia plasma. This treatment leads to a more than fivefold increase in the concentration of nitrogen (from 0.7 to 3.6 at %), a sixfold decrease in the resistance, and a 10% decrease in the work function of CNTs, resulting in stabilization of the process of cold electron emission.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785020100193