Study of the structural quality of GaN epitaxial layers obtained by hydride vapor phase epitaxy using a low-temperature buffer layer

2015 ◽  
Vol 60 (6) ◽  
pp. 889-894
Author(s):  
I. A. Belogorohov ◽  
A. A. Donskov ◽  
S. N. Knyazev ◽  
Yu. P. Kozlova ◽  
V. F. Pavlov ◽  
...  
2006 ◽  
Vol 527-529 ◽  
pp. 1537-1541
Author(s):  
Alexander A. Lebedev ◽  
O. Yu. Ledyaev ◽  
Anatoly M. Strel'chuk ◽  
Alexey N. Kuznetsov ◽  
A.E. Cherenkov ◽  
...  

The investigated AlGaN epitaxial layers were grown by hydride vapor phase epitaxy (HVPE) on a commercial P+ SiC substrate or on an N+ SiC Lely substrate with a p+ SiC layer previously grown by sublimation epitaxy. To investigate the electrical characteristics of the n-p heterojunction, mesa structures of 100, 200 and 1500 microns in diameter were fabricated by reactive ion etching. Investigation of electrical characteristics shows good quality of grown n- AlGaN/p-SiC heterojunctions. This shows applicability of this technological combination for producing n-AlGaN/p-SiC bipolar or FET transistors.


2018 ◽  
Vol 112 (4) ◽  
pp. 042101 ◽  
Author(s):  
Kevin L. Schulte ◽  
Anna Braun ◽  
John Simon ◽  
Aaron J. Ptak

2002 ◽  
Vol 743 ◽  
Author(s):  
C. D. Lee ◽  
R. M. Feenstra ◽  
J. E. Northrup ◽  
L. Lymperakis ◽  
J. Neugebauer

ABSTRACTM-plane GaN(1100) is grown by plasma assisted molecular beam epitaxy on ZnO(1100) substrates. A low-temperature GaN buffer layer is found to be necessary to obtain good structural quality of the films. Well oriented (1100) GaN films are obtained, with a slate like surface morphology. On the GaN(1100) surfaces, reconstructions with symmetry of c(2×2) and approximate “4×5” are found under N- and Ga-rich conditions, respectively. We propose a model for Ga-rich conditions with the “4×5” structure consisting of ≥ 2 monolayers of Ga terminating the GaN surface.


1999 ◽  
Vol 59 (1-3) ◽  
pp. 12-15 ◽  
Author(s):  
Jeong-wook Lee ◽  
Ho-sun Paek ◽  
Ji-Beom Yoo ◽  
Gyeung-ho Kim ◽  
Dong-Wha Kum

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