Role of AlN spacer layer and GaN back barrier on the optoelectronic properties of AlGaN/AlN/InGaN/GaN high electron mobility transistors

2020 ◽  
Author(s):  
Payal Taya ◽  
Abhishek Chatterjee ◽  
A. Bose ◽  
V. K. Singh ◽  
Renu Tyagi ◽  
...  
2010 ◽  
Vol 7 (10) ◽  
pp. 2412-2414 ◽  
Author(s):  
Subramaniam Arulkumaran ◽  
Ng Geok Ing ◽  
Vicknesh Sahmuganathan ◽  
Liu Zhihong ◽  
Bryan Maung

2011 ◽  
Vol 99 (22) ◽  
pp. 223506 ◽  
Author(s):  
Feng Gao ◽  
Bin Lu ◽  
Libing Li ◽  
Stephen Kaun ◽  
James S. Speck ◽  
...  

2009 ◽  
Vol 23 (12n13) ◽  
pp. 3029-3034 ◽  
Author(s):  
M. SAKOWICZ ◽  
J. ŁUSAKOWSKI ◽  
K. KARPIERZ ◽  
M. GRYNBERG ◽  
G. VALUSIS

The role of gated and ungated two dimensional (2D) electron plasma in THz detection by high electron mobility transistors (HEMTs) was investigated. THz response of GaAs / AlGaAs and GaN / AlGaN HEMTs was measured at 4.4K in quantizing magnetic fields with a simultaneous modulation of the gate voltage UGS. This allowed us to measure both the detection signal, S, and its derivative d S/ d UGS. Shubnikov - de-Haas oscillations (SdHO) of both S and d S/ d UGS were observed. A comparison of SdHO observed in detection and magnetoresistance measurements allows us to associate unambiguously SdHO in S and d S/ d UGS with the ungated and gated parts of the transistor channel, respectively. This allows us to conclude that the entire channel takes part in the detection process. Additionally, in the case of GaAlAs / GaAs HEMTs, a structure related to the cyclotron resonance transition was observed.


1995 ◽  
Vol 66 (6) ◽  
pp. 748-750 ◽  
Author(s):  
M. Meshkinpour ◽  
M. S. Goorsky ◽  
G. Chu ◽  
D. C. Streit ◽  
T. R. Block ◽  
...  

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