Capacitive and analytical approaches for the analysis of field emission from carbon nanotubes in a sphere-to-plane diode
Articolo
Data di Pubblicazione:
2007
Citazione:
Capacitive and analytical approaches for the analysis of field emission from carbon nanotubes in a sphere-to-plane diode / I. Boscolo, S. Cialdi, A. Fiori, S. Orlanducci, V. Sessa, M.L. Terranova, A. Ciorba, M. Rossi. - In: JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. B. - ISSN 1071-1023. - 25:4(2007), pp. 1253-1260.
Abstract:
In this article the authors present a study of the emitting behavior of carbon nanotube cathodes in a sphere-to-plane field emission diode. A capacitive technique is proposed for the measurement of the anode-cathode distance as well as an innovative analytical procedure for the evaluation of the emitting area. Both anode-cathode distance and emitting area are essential parameters for the analysis of field emission experiments, the interpretation of results, and the extraction of
technologically relevant data. Such parameters allow them to find out the values of turn on fields, current density, and field enhancement factor through the measurement of the emitted current versus
applied voltage. Emission tests on single wall carbon nanotube samples with different morphologies have been performed in order to test the procedures and to compare data relative to samples with different morphologies.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Carbon nanotubes ; nanotube devices ; diodes ; cathodes ; field emission ; current density
Elenco autori:
I. Boscolo, S. Cialdi, A. Fiori, S. Orlanducci, V. Sessa, M.L. Terranova, A. Ciorba, M. Rossi
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