Detail publikačního výsledku

Electrical Characterization of Cold Field-Emission Cathodes based on Fowler-Nordheim Analysis

KNÁPEK, A.; SERGEEV, E.; GRMELA, L.

Originální název

Electrical Characterization of Cold Field-Emission Cathodes based on Fowler-Nordheim Analysis

Anglický název

Electrical Characterization of Cold Field-Emission Cathodes based on Fowler-Nordheim Analysis

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

field-emission, Fowler-Nordheim analysis, quantum tunnelling

Klíčová slova v angličtině

field-emission, Fowler-Nordheim analysis, quantum tunnelling

Autoři

KNÁPEK, A.; SERGEEV, E.; GRMELA, L.

Rok RIV

2014

Vydáno

26.06.2013

Nakladatel

Vysoké učení technické v Brně

Místo

Brno

ISBN

978-80-214-4754-7

Kniha

Electronic Devices and Systems - IMAPS CS International Conference 2013

Strany od

104

Strany do

108

Strany počet

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"
}