Epitaxial growth of CuGaSe2 and CuInSe2 single crystals by halogen transport method using Se(CH3)2

1994 ◽  
Vol 143 (3-4) ◽  
pp. 213-220 ◽  
Author(s):  
Osamu Igarashi
1989 ◽  
Vol 157 ◽  
Author(s):  
W. Zhou ◽  
D.X. Cao ◽  
D.K. Sood

ABSTRACTIsothermal annealing behaviour of intrinsic amorphous layers produced by stoichiometric implantation in a—axis oriented α—Al2O3 single crystals has been studied. The amorphous phase transforms directly to α—Al2O3 at a well defined planar interface which moves towards the free surface. The epitaxial growth slows down after initial rapid crystallization, indicating two separate regimes. The interface velocity shows Arrhenius behaviour in both regimes with activation energies of 0.6 and 0.08 eV respectively. There is an evidence for additional surface or random crystallization into κ or γ-Al2O3 phases within the first few nm on the surface, after prolonged annealing. These results are remarkably different from those reported previously for c–axis oriented Al2O3 crystals, showing the importance of substrate orientation during crystallization. A tentative model to explain the crystallization behaviour is discussed.


1987 ◽  
Vol 134 (6) ◽  
pp. 1548-1553 ◽  
Author(s):  
Fumio Hasegawa ◽  
Tadashi Yamamoto ◽  
Koji Katayama ◽  
Yasuo Nannichi

2010 ◽  
Vol 645-648 ◽  
pp. 1183-1186
Author(s):  
Yuri N. Makarov ◽  
T.Yu. Chemekova ◽  
O.V. Avdeev ◽  
N. Mokhov ◽  
S.S. Nagalyuk ◽  
...  

AlN substrates are produced by Physical Vapor Transport (PVT) growth of AlN bulk single crystals followed by post growth processing of the crystals (calibration, slicing, lapping, and polishing). The AlN substrates are suitable for epitaxial growth. The substrates may be used for development of devices such as ultra violet (UV) light emitting diodes (LEDs) and laser diodes (LDs), Piezo-Electric Transducers, SAW devices, RF Transistors, etc.


2006 ◽  
Vol 89 (26) ◽  
pp. 261905 ◽  
Author(s):  
A. Sassella ◽  
A. Borghesi ◽  
M. Campione ◽  
S. Tavazzi ◽  
C. Goletti ◽  
...  

2003 ◽  
Vol 150 (2) ◽  
pp. C89 ◽  
Author(s):  
M. Froment ◽  
L. Beaunier ◽  
H. Cachet ◽  
A. Etcheberry

2008 ◽  
Vol 600-603 ◽  
pp. 15-18
Author(s):  
Emil Tymicki ◽  
Krzysztof Grasza ◽  
Władysław Hofman ◽  
Ryszard Diduszko ◽  
Rafał Bożek

Silicon carbide single crystals grown by the seeded physical vapour transport method have been investigated. These crystals were grown on the Si-face (0001) of 6H-SiC seeds. The growth proceeded under quasi-equilibrium conditions with the growth rate in the range 0.05-0.2 mm/h, that was extremely low as compared to used in standard growth processes. The shape and morphology of the crystallization fronts have been studied. Moreover, defects in crystals and wafers cut from these crystals were examined by optical and atomic force microscopy combined with KOH etching and X-Ray diffraction.


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