scholarly journals THEORETICAL STUDY OF INFLUENCE OF MODIFICATION OF THE METAL SURFACE ON MAGNITUDE OF THE FIELD EMISSION CURRENT IN GRADIENT-STABLE ACCELERATING STRUCTURES

2019 ◽  
pp. 100-104
Author(s):  
I. I. Musiienko ◽  
R. I. Kholodov
Keyword(s):  
Field Emission ◽  
Metal Surface ◽  
Potential Barrier ◽  
Current Density ◽  
Emission Current Density ◽  
Emission Current ◽  
Vacuum System ◽  
Near Surface ◽  
Dipole Layer ◽  
Field Emission Current

Quantum-mechanical problem on electron motion through the model potential barrier of the metal-vacuum system with an additional near-surface dipole layer is considered. Taking into account the continuity conditions of the wave functions and their derivatives at the interface between the two media, general expressions of the coefficient of transparency of the potential barrier and a current density of field emission is obtained in the framework of this model. It is shown the influence of the effective thickness of the dipole layer of the metal surface on a value of the field emission current density.

Large field emission current density from well-aligned carbon nanotube field emitter arrays

2001 ◽  
Vol 1 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Jung Inn Sohn ◽  
Seonghoon Lee ◽  
Yoon-Ho Song ◽  
Sung-Yool Choi ◽  
Kyoung-Ik Cho ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Current Density ◽  
Emission Current Density ◽  
Emission Current ◽  
Large Field ◽  
Field Emitter ◽  
Field Emitter Arrays ◽  
Field Emission Current ◽  
Field Emission Current Density

Ultrahigh field emission current density from nitrogen-implanted ZnO nanowires

2010 ◽  
Vol 21 (9) ◽  
pp. 095701 ◽  
Author(s):  
Qing Zhao ◽  
Jingyun Gao ◽  
Rui Zhu ◽  
Tuocheng Cai ◽  
Sheng Wang ◽  
...  
Keyword(s):  
Field Emission ◽  
Current Density ◽  
Emission Current Density ◽  
Zno Nanowires ◽  
Emission Current ◽  
Ultrahigh Field ◽  
Field Emission Current ◽  
Field Emission Current Density

scholarly journals Effects of Antimony Deposition on Field-Emission Current Density of Ge/Si

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Veronika Burobina
Keyword(s):  
Field Emission ◽  
Current Density ◽  
Emission Current Density ◽  
Emission Current ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Field Emission Current ◽  
Current Voltage ◽  
Field Emission Current Density ◽  
20 Nm

Abstract To estimate the field-emission current density of a Ge/Si heterosystem, 20-nm germanium/silicon (100) samples were grown by molecular beam epitaxy. The surface of one sample was covered with a layer of antimony, which was removed in vacuum prior to the samples being measured. A second sample of Ge/Si was exposed to room air in the absence of antimony. The current–voltage characteristics of both samples obtained by scanning tunneling microscopy (STM) were discovered to be in agreement with classical Fowler–Nordheim theory. The density of emission current from Ge nanocrystal exceeds the density of emission current from the wetting layer of Ge/Si. The density of emission current of pure Ge nanocrystal is less than the density of emission current of Ge nanocrystal with adsorption layers.

Low turn-on field and high field emission current density from Ag/TiO2 nanocomposite

2016 ◽  
Vol 657 ◽  
pp. 167-171 ◽  
Author(s):  
Girish P. Patil ◽  
Amol B. Deore ◽  
Vivekanand S. Bagal ◽  
Dattatray J. Late ◽  
Mahendra A. More ◽  
...  
Keyword(s):  
Field Emission ◽  
Current Density ◽  
High Field ◽  
Emission Current Density ◽  
Emission Current ◽  
Turn On ◽  
Field Emission Current ◽  
Field Emission Current Density
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