Simulation of Electrothermal Characteristics of 1200V/75A 4H-SiC JBS

2019 ◽  
Vol 954 ◽  
pp. 139-143
Author(s):  
Hang Gu ◽  
Yi Dan Tang ◽  
Lan Ge ◽  
Yun Bai ◽  
You Run Zhang ◽  
...  
Keyword(s):  
Schottky Diode ◽  
Current Density ◽  
Positive Feedback ◽  
High Current Density ◽  
Thermal Sensitivity ◽  
Junction Temperature ◽  
High Current ◽  
Electrothermal Simulation ◽  
Heating Mode ◽  
A Current

In this paper the electrothermal properties of the 4H-SiC JBS (Junction barrier Schottky) diode is investigated. FloTHERM and Silvaco TCAD are used for electrothermal simulation at the same time. Firstly, the effect of Rjc (junction-to-case thermal resistance) on junction temperature is investigated, the result shows that the junction temperature is more sensitive to the Rjc in the current heating mode because of some kind of positive feedback. Then, a current pulse is applied to the JBS, result shows that this kind of positive feedback is especially noticeable. Finally, the JBS will be compared with PIN under high current density pulsed operation, in order to analyze their thermal sensitivity to Rjc.

THE ELECTROLYSIS OF SOME ORGANIC COMPOUNDS WITH ALTERNATING CURRENT

1939 ◽  
Vol 17b (5) ◽  
pp. 147-158 ◽  
Author(s):  
J. W. Shipley ◽  
M. T. Rogers
Keyword(s):  
Hydrochloric Acid ◽  
Organic Compounds ◽  
Current Density ◽  
Irreversible Process ◽  
High Current Density ◽  
Current Yield ◽  
High Current ◽  
Hydrogen Overvoltage ◽  
General Relations ◽  
A Current

The a-c. electrolysis of a number of organic compounds was carried out in order to ascertain what products might be obtained, what electrolytic conditions affected the nature and the yield of products, and to discover the general relations governing oxidation and reduction when a.c. is used. Oxidation was found to predominate over reduction, owing, probably, to the relatively low hydrogen overvoltage on the electrodes. The effect of varying the conditions of a-c. electrolysis was in general similar to that observed in d-c. electrolysis. Satisfactory yields were obtained only when a product of an irreversible process was concerned. A good yield of quinhydrone from the a-c. electrolysis of hydroquinone was secured at a relatively high current density. The chlorination of acetone by the a-c. electrolysis of a solution of acetic anhydride in hydrochloric acid gave a current yield of 35% at a current density of 2 amp. per cm2.

Low-Temperature Hydrothermal Synthesis and Electrochemical Properties of Birnessit-Type Manganese Dioxide Nanosheets

2013 ◽  
Vol 800 ◽  
pp. 393-397 ◽  
Author(s):  
De Yan ◽  
Ying Liu ◽  
Zhi Guo Wu ◽  
Ren Fu Zhuo ◽  
Jun Wang
Keyword(s):  
Low Temperature ◽  
Current Density ◽  
High Current Density ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
High Current ◽  
Cycle Stability ◽  
Good Rate Capability ◽  
A Current

Birnessite MnO2 nanosheets were synthesized by self-limiting deposition of KMnO4 in a facile low-temperature hydrothermal process. The MnO2 electrode exhibits a high specific capacitance of 169 F g-1 at a current density of 0.1 A g-1, good rate capability with a capacitance of 96 F g-1 even at a high current density of 5 A g-1, as well as excellent cycle stability with capacitance retention of 94% at 1 A g-1 after 1,000 cycles.

scholarly journals A High Current Density Direct‐Current Generator Based on a Moving van der Waals Schottky Diode

2018 ◽  
pp. 1804398 ◽  
Author(s):  
Shisheng Lin ◽  
Yanghua Lu ◽  
Sirui Feng ◽  
Zhenzhen Hao ◽  
Yanfei Yan
Keyword(s):  
Schottky Diode ◽  
Direct Current ◽  
Current Density ◽  
High Current Density ◽  
Van Der Waals ◽  
High Current ◽  
Current Generator

Three-dimensional porous copper-decorated bismuth-based nanofoam for boosting electrochemical reduction of CO2 to formate

2021 ◽  
Author(s):  
Yingchun Zhang ◽  
Changsheng Cao ◽  
Xintao Wu ◽  
Qi-Long Zhu
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Three Dimensional ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
High Current ◽  
Porous Copper ◽  
Reduction Of Co2 ◽  
Co2 Reduction Reaction ◽  
Wide Potential

Bismuth (Bi)-based nanomaterials are considered as the promising electrocatalysts for electrocatalytic CO2 reduction reaction (CO2RR), but it is challenging to achieve high current density and selectivity in a wide potential...

Cu-Doped Alloy Layer Guiding Uniform Li Deposition on a Li–LLZO Interface under High Current Density

2021 ◽  
Author(s):  
Xia He ◽  
Fei Yan ◽  
Mingyuan Gao ◽  
Yunjing Shi ◽  
Guanglong Ge ◽  
...  
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Alloy Layer ◽  
High Current
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