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KNÁPEK, A. SERGEEV, E. GRMELA, L.
Original Title
Electrical Characterization of Cold Field-Emission Cathodes based on Fowler-Nordheim Analysis
Type
conference paper
Language
English
Original Abstract
Presented paper introduces indirect measurement method which provides information about condition of the field-emission cathode. The objective is to show that the phenomenon of electrons moving through the vacuum of the experimental emitter is in fact an example of Fowler-Nordheim tunnelling, also known as quantum tunnelling. Using Fowler-Nordheim analysis it is shown that the V-I relation is consistent with the expected tunnelling model. From the obtained V-I relation, it is further possible to calculate basic characteristics of the cathode, including the current density, mean value of the macroscopic electric field or the size of area on the facet from which the electron emission takes place. Main advantage of this method is its simple implementation which allows easy implementation on any device based on field-emission electron source.
Keywords
field-emission, Fowler-Nordheim analysis, quantum tunnelling
Authors
KNÁPEK, A.; SERGEEV, E.; GRMELA, L.
RIV year
2013
Released
26. 6. 2013
Publisher
Vysoké učení technické v Brně
Location
Brno
ISBN
978-80-214-4754-7
Book
Electronic Devices and Systems - IMAPS CS International Conference 2013
Pages from
104
Pages to
108
Pages count
5
BibTex
@inproceedings{BUT100276, author="Alexandr {Knápek} and Evgeny {Sergeev} and Lubomír {Grmela}", title="Electrical Characterization of Cold Field-Emission Cathodes based on Fowler-Nordheim Analysis", booktitle="Electronic Devices and Systems - IMAPS CS International Conference 2013", year="2013", pages="104--108", publisher="Vysoké učení technické v Brně", address="Brno", isbn="978-80-214-4754-7" }