Epitaxial growth of gallium nitride thin films on A-Plane sapphire by molecular beam epitaxy

1999 ◽  
Vol 85 (7) ◽  
pp. 3582-3589 ◽  
Author(s):  
D. Doppalapudi ◽  
E. Iliopoulos ◽  
S. N. Basu ◽  
T. D. Moustakas
1999 ◽  
Vol 572 ◽  
Author(s):  
C. M. Lueng ◽  
H. L. W. Chan ◽  
W. K. Fong ◽  
C. Surya ◽  
C. L. Choy

ABSTRACTAluminum nitride (AlN) and gallium nitride (GaN) thin films have potential uses in high temperature, high frequency (e.g. microwave) acoustic devices. In this work, the piezoelectric coefficients of wurtzite AlN and GaN/AlN composite film grown on silicon substrates by molecular beam epitaxy were measured by a Mach-Zehnder type heterodyne interferometer. The effects of the substrate on the measured coefficients are discussed.


1989 ◽  
Vol 28 (Part 2, No. 10) ◽  
pp. L1809-L1811 ◽  
Author(s):  
Yoshimi Nakayama ◽  
Ichiro Tsukada ◽  
Atsutaka Maeda ◽  
Kunimitsu Uchinokura

1996 ◽  
Vol 165 (1-2) ◽  
pp. 175-178 ◽  
Author(s):  
V. Oderno ◽  
C. Dufour ◽  
K. Dumesnil ◽  
Ph. Mangin ◽  
G. Marchal

2004 ◽  
Vol 16 (33) ◽  
pp. S3451-S3458 ◽  
Author(s):  
R Macovez ◽  
C Cepek ◽  
M Sancrotti ◽  
A Goldoni ◽  
L Petaccia ◽  
...  

1989 ◽  
Vol 160 ◽  
Author(s):  
R.P. Burns ◽  
Y.H. Lee ◽  
N.R. Parikh ◽  
J.B. Posthill ◽  
M.J. Mantini ◽  
...  

AbstractEpitaxial growth of thin films, alloys, and multilayers from the Cu-Ni system are being explored as a means of fabricating a substrate to lattice match diamond. These single crystal films are superior to commercially available substrate material. Due to the high reactivity of the metal surfaces in atmosphere, all processing must be done under UHV conditions. In vacuo preparation, growth, and analysis of the metals is described.


Author(s):  
B. Riah ◽  
Julien Camus ◽  
Abdelhak Ayad ◽  
Mohammad Rammal ◽  
Raouia Zernadji ◽  
...  

This paper reports the effect of silicon substrate orientation and aluminum nitride buffer layer deposited by molecular beam epitaxy on the growth of aluminum nitride thin films deposited by DC magnetron sputtering technique at low temperature. The structural analysis has revealed a strong (0001) fiber texture for both substrates Si (100) and (111) and a hetero-epitaxial growth on few nanometers AlN buffer layer grown by MBE on Si (111) substrate. SEM images and XRD characterization have shown an enhancement in AlN crystallinity thanks to AlN (MBE) buffer layer. Raman spectroscopy indicated that the AlN film was relaxed when it deposited on Si (111), in compression on Si (100) and under tension on AlN buffer layer grown by MBE/Si (111) substrates, respectively. The interface between Si (111) and AlN grown by MBE is abrupt and well defined; contrary to the interface between AlN deposited using PVD and AlN grown by MBE. Nevertheless, AlN hetero-epitaxial growth was obtained at low temperature (<250°C).


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