Determining the field enhancement factors of various field electron emitters with high numerical accuracy

2021 ◽  
Vol 39 (3) ◽  
pp. 032801
Author(s):  
Fernando F. Dall’Agnol ◽  
Sergey V. Filippov ◽  
Eugeni O. Popov ◽  
Anatoly G. Kolosko ◽  
Thiago A. de Assis
Keyword(s):  
Field Enhancement ◽  
Numerical Accuracy ◽  
Field Electron ◽  
Enhancement Factors ◽  
Electron Emitters

scholarly journals Model of Field Electron Emission from the Edge of Flat Graphene into Vacuum

2019 ◽  
Vol 10 (1) ◽  
pp. 61-68
Author(s):  
N. A. Poklonski ◽  
A. I. Siahlo ◽  
S. A. Vyrko ◽  
S. V. Ratkevich ◽  
A. T. Vlassov
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Graphene Sheet ◽  
Current Density ◽  
Electron Emission ◽  
Field Effect ◽  
Field Electron Emission ◽  
Graphene Plane ◽  
Field Electron ◽  
Electron Emitters

Graphene-based nanostructures are the promising materials for applications as electron emitters.The aim of the work is to study the field electron emission from the edge of a single graphene plane.In the semi-classical approximation, a model of field electron emission from the edge of a rectangular graphene sheet has been developed.The current density of field electron emission into vacuum from the edge of a flat graphene sheet was calculated depending on the magnitude of the pulling electric field strength.The analysis and comparison of limiting emission currents from graphene and from bulk systems have been carried out.The results of the work can be used in the development of graphene-based field effect cathodes.

High Current Density Planar Field Electron Emitters with Carbon Nanotubes

2010 ◽  
Vol 19 (1-2) ◽  
pp. 100-104 ◽  
Author(s):  
A. L. Musatov ◽  
K. R. Izrael'yants ◽  
A. B. Ormont ◽  
E. G. Chirkova ◽  
E. F. Kukovitsky
Keyword(s):  
Carbon Nanotubes ◽  
Current Density ◽  
High Current Density ◽  
High Current ◽  
Field Electron ◽  
Electron Emitters

scholarly journals Low Temperature Synthesis of Lithium-Doped Nanocrystalline Diamond Films with Enhanced Field Electron Emission Properties

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 653 ◽  
Author(s):  
Kamatchi Sankaran ◽  
Kalpataru Panda ◽  
Ping-Yen Hsieh ◽  
Paulius Pobedinskas ◽  
Jeong Park ◽  
...  
Keyword(s):  
Low Temperature ◽  
Electron Emission ◽  
High Current Density ◽  
Field Enhancement ◽  
Life Time ◽  
Field Electron Emission ◽  
Nanocrystalline Diamond ◽  
Large Field ◽  
Temperature Sensitive ◽  
Field Electron

Low temperature (350 °C) grown conductive nanocrystalline diamond (NCD) films were realized by lithium diffusion from Cr-coated lithium niobate substrates (Cr/LNO). The NCD/Cr/LNO films showed a low resistivity of 0.01 Ω·cm and excellent field electron emission characteristics, viz. a low turn-on field of 2.3 V/µm, a high-current density of 11.0 mA/cm2 (at 4.9 V/m), a large field enhancement factor of 1670, and a life-time stability of 445 min (at 3.0 mA/cm2). The low temperature deposition process combined with the excellent electrical characteristics offers a new prospective for applications based on temperature sensitive materials.

scholarly journals Study of nanocarbon thin-film field-electron emitters by Raman spectroscopy

2019 ◽  
Vol 1236 ◽  
pp. 012005
Author(s):  
V S Osipov ◽  
N A Besedina ◽  
P G Gabdullin ◽  
O E Kvashenkina ◽  
A V Arhipov
Keyword(s):  
Thin Film ◽  
Raman Spectroscopy ◽  
Field Electron ◽  
Electron Emitters

scholarly journals Calculating average surface enhancement factors of randomly nanostructured electrodes by a combination of SERS and impedance spectroscopy

2015 ◽  
Vol 17 (33) ◽  
pp. 21220-21225 ◽  
Author(s):  
J. Kozuch ◽  
N. Petrusch ◽  
D. Gkogkou ◽  
U. Gernert ◽  
I. M. Weidinger
Keyword(s):  
Electromagnetic Field ◽  
Impedance Spectroscopy ◽  
Field Enhancement ◽  
Surface Enhancement ◽  
Average Surface ◽  
Nanostructured Electrodes ◽  
Electrode Surfaces ◽  
Enhancement Factors ◽  
Simultaneous Use

Simultaneous use of SERS and impedance spectroscopy allows determining electromagnetic field enhancement factors of electrode surfaces with random nanostructures.

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