Forward thermionic field emission transport and significant image force lowering caused by high electric field at metal/heavily-doped SiC Schottky interfaces

In this theoretical work, the author has modified the current-voltage relationship of the field and thermionic–field emission models developed by Padovani and Stratton for the Schottky barrier diodes in the reverse bias conditions with account of the image force correction. Considered in this approach has been the shape of Schottky barrier as trapezoidal. The obtained results show a good agreement between current densities calculated within the framework of these developed models and those calculated using the general model.

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Study on Charge and Discharge Phenomenon of Lithium Ion Battery under High Electric Field

IEEJ Transactions on Power and Energy ◽

10.1541/ieejpes.140.650 ◽

2020 ◽

Vol 140 (8) ◽

pp. 650-655

Author(s):

Shoki Tsuji ◽

Yoji Fujita ◽

Hiroaki Urushibata ◽

Akihiko Kono ◽

Ryoichi Hanaoka ◽

...

Keyword(s):

Electric Field ◽

Lithium Ion Battery ◽

Lithium Ion ◽

High Electric Field

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Optically Induced Field-Emission Source Based on Aligned Vertical Carbon Nanotube Arrays

Nanomaterials ◽

10.3390/nano11071810 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1810

Author(s):

Mengjie Li ◽

Qilong Wang ◽

Ji Xu ◽

Jian Zhang ◽

Zhiyang Qi ◽

...

Keyword(s):

Carbon Nanotube ◽

Electric Field ◽

Field Emission ◽

Field Enhancement ◽

Absorption Efficiency ◽

Photon Absorption ◽

Nanotube Arrays ◽

Carbon Nanotube Arrays ◽

Induced Field ◽

Optically Induced

Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode. Here, we report vertical carbon nanotube arrays (VCNTAs) that performed as high-density electron sources. A combination of high applied electric field and laser illumination made it possible to modulate the emission with laser pulses. When the bias electric field and laser power density increased, the emission process is sensitive to a power law of the laser intensity, which supports the emission mechanism of optically induced field emission followed by over-the-barrier emission. Furthermore, we determine a polarization dependence that exhibits a cosine behavior, which verifies the high possibility of optically induced field emission.

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Analysis of Electric Field and Current Density for Different Electrode Configuration of XLPE Insulation

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.36.29092 ◽

2018 ◽

Vol 7 (3.36) ◽

pp. 127 ◽

Cited By ~ 1

Author(s):

Nishanthi Sunthrasakaran ◽

Nor Akmal Mohd Jamail ◽

Qamarul Ezani Kamarudin ◽

Sujeetha Gunabalan

Keyword(s):

Electric Field ◽

Power System ◽

Field Distribution ◽

High Voltage ◽

Current Density ◽

Electric Field Distribution ◽

Electrical Power ◽

High Electric Field ◽

Electrode Configuration ◽

Maximum Electric Field

The most important aspect influencing the circumstance and characteristics of electrical discharges is the distribution of electric field in the gap of electrodes. The study of discharge performance requires details on the variation of maximum electric field around the electrode. In electrical power system, the insulation of high voltage power system usually subjected with high electric field. The high electric field causes the degradation performance of insulation and electrical breakdown start to occur. Generally, the standard sphere gaps widely used for protective device in electrical power equipment. This project is study about the electric field distribution and current density for different electrode configuration with XLPE barrier. Hence, the different electrode configuration influences the electric field distribution. This project mainly involves the simulation in order to evaluate the maximum electric field for different electrode configuration. Finite Element Method (FEM) software has been used in this project to perform the simulation. This project also discusses the breakdown characteristics of the XLPE. The accurate evaluation of electric field distribution and maximum electric field is an essential for the determination of discharge behavior of high voltage apparatus and components. The degree of uniformity is very low for pointed rod-plane when compared to other two electrode configurations. The non- uniform electric distribution creates electrical stress within the surface of dielectric barrier. As a conclusion, when the gap distance between the electrodes increase the electric field decrease.

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X-ray emission from a laser irradiated target in the presence of high electric field

Optics Communications ◽

10.1016/0030-4018(79)90081-6 ◽

1979 ◽

Vol 30 (2) ◽

pp. 219-223 ◽

Cited By ~ 9

Author(s):

S.G. Dinev ◽

Ch.I. Radev ◽

K.V. Stamenov ◽

K.A. Stankov

Keyword(s):

Electric Field ◽

High Electric Field ◽

X Ray

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Spectroscopic analysis of high electric field enhanced ionization in laser filaments in air for corona guiding

High Power Laser Science and Engineering ◽

10.1017/hpl.2016.7 ◽

2016 ◽

Vol 4 ◽

Cited By ~ 8

Author(s):

Yingxia Wei ◽

Yaoxiang Liu ◽

Tie-Jun Wang ◽

Na Chen ◽

Jingjing Ju ◽

...

Keyword(s):

Experimental Study ◽

Femtosecond Laser ◽

Electric Field ◽

Corona Discharge ◽

High Voltage ◽

Fluorescence Spectra ◽

Spectroscopic Analysis ◽

Laser Pulses ◽

Spectroscopic Measurement ◽

High Electric Field

We report on a systematic experimental study on the fluorescence spectra produced from a femtosecond laser filament in air under a high electric field. The electric field alone was strong enough to create corona discharge (CD). Fluorescence spectra from neutral and ionic air molecules were measured and compared with pure high-voltage CD and pure laser filamentation (FIL). Among them, high electric field assisted laser FIL produced nitrogen fluorescence more efficiently than either pure CD or pure FIL processes. The nonlinear enhancement of fluorescence from the interaction of the laser filament and corona discharging electric field resulted in a more efficient ionization along the laser filament zone, which was confirmed by the spectroscopic measurement of both ionization-induced fluorescence and plasma-scattered 800 nm laser pulses. This is believed to be the key precursor process for filament-guided discharge.

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