Persistent photoconductivity in a two-dimensional electron gas system formed by an AlGaN/GaN heterostructure

1997 ◽  
Vol 82 (3) ◽  
pp. 1227-1230 ◽  
Author(s):  
J. Z. Li ◽  
J. Y. Lin ◽  
H. X. Jiang ◽  
M. Asif Khan ◽  
Q. Chen
Keyword(s):  
Electron Gas ◽  
Two Dimensional ◽  
Persistent Photoconductivity ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Gas System ◽  
Dimensional Electron Gas ◽  
Gan Heterostructure

Electroreflectance of the AlGaN/GaN heterostructure and two-dimensional electron gas

2002 ◽  
Vol 80 (24) ◽  
pp. 4549-4551 ◽  
Author(s):  
S. R. Kurtz ◽  
A. A. Allerman ◽  
D. D. Koleske ◽  
G. M. Peake
Keyword(s):  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Gan Heterostructure

Investigation of Traps in AlGaN/GaN Heterostructures by Ultrasonic Vibrations

2021 ◽  
Vol 66 (12) ◽  
pp. 1058
Author(s):  
V.V. Kaliuzhnyi ◽  
O.I. Liubchenko ◽  
M.D. Tymochko ◽  
Y.M. Olikh ◽  
V.P. Kladko ◽  
...  
Keyword(s):  
Carrier Density ◽  
Electron Gas ◽  
Two Dimensional ◽  
Ultrasonic Vibrations ◽  
Persistent Photoconductivity ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dx Centers ◽  
Dimensional Electron Gas

A method of dynamic deformations has been proposed as a useful informative tool in the characterization of transportation properties of a two-dimensional electron gas (2DEG) in AlGaN/GaN heterostructures. It is found that the exposing of a sample to ultrasonic vibrations results in the persistent acousto-conductivity (PAC) which was observed up to room temperatures. The PAC behaves itself like persistent photoconductivity (PPC), and the carrier density in the 2DEG channel is primarily contributed by the transfer of electrons excited from traps (like DX centers) as a result of their reconstruction under the ultrasonic loading.

Electronic properties of the AlGaN/GaN heterostructure and two-dimensional electron gas observed by electroreflectance

2004 ◽  
Vol 95 (4) ◽  
pp. 1888-1894 ◽  
Author(s):  
S. R. Kurtz ◽  
A. A. Allerman ◽  
D. D. Koleske ◽  
A. G. Baca ◽  
R. D. Briggs
Keyword(s):  
Electronic Properties ◽  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Gan Heterostructure
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