scholarly journals Wide and ultra-wide bandgap oxides: where paradigm-shift photovoltaics meets transparent power electronics

Author(s):  
Amador Perez-Tomas ◽  
Ferechteh H. Teherani ◽  
Philippe Bove ◽  
Eric V. Sandana ◽  
Ekaterina Chikoidze ◽  
...  
2019 ◽  
Vol 28 (01n02) ◽  
pp. 1940010
Author(s):  
Dong Ji ◽  
Srabanti Chowdhury

Silicon technology enabled most of the electronics we witness today, including power electronics. However, wide bandgap semiconductors are capable of addressing high-power electronics more efficiently compared to Silicon, where higher power density is a key driver. Among the wide bandgap semiconductors, silicon carbide (SiC) and gallium nitride (GaN) are in the forefront in power electronics. GaN is promising in its vertical device topology. From CAVETs to MOSFETs, GaN has addressed voltage requirements over a wide range. Our current research in GaN offers a promising view of GaN that forms the theme of this article. CAVETs and OGFETs (a type of MOSFET) in GaN are picked to sketch the key achievements made in GaN vertical device over the last decade.


2018 ◽  
Vol 12 (2) ◽  
pp. 175-178
Author(s):  
Shinichi Shikata ◽  

To achieve a 50% worldwide reduction of CO2by the middle of this century, development of energy saving power device technology using wide bandgap materials is urgently needed. Diamond is receiving increasing attention as a next generation material for wide bandgap semiconductors owing to its extreme characteristics. Research studies investigating large wafers, low resistivity, and low dislocation have accelerated. This study targets the use of wafers for power electronics applications, and the required machining technologies for diamond, including wafer shaping, slicing, and surface finishing, are introduced.


2018 ◽  
Author(s):  
Sujit Das ◽  
Laura D. Marlino ◽  
Kristina O. Armstrong

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