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Materials Chemistry and Bulk Crystal Growth of Group III Nitrides in Supercritical Ammonia

Published online by Cambridge University Press:  10 February 2011

Joseph W. Kolis ,
Steven Wilcenski  and
Robert A. Laudise
Joseph W. Kolis
Affiliation:
Department of Chemistry Clemson University, Clemson SC 29634, [email protected]
Steven Wilcenski
Affiliation:
Department of Chemistry Clemson University, Clemson SC 29634, [email protected]
Robert A. Laudise
Affiliation:
Bell Laboratories Lucent Technologies Murray Hill NJ. 07974
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Abstract

Reasonably sized crystals of aluminum and gallium nitrides can be grown in supercritical ammonia using chloride and amide as the mineralizer. Best growth was achieved at 380°C in ammonia at 40,000 psi (270 MPa). Under these conditions crystals as large as 0.4 mm could be grown over several days. Attempts to optimize the identity and concentration of the mineralizer, and the acidity of the solution, led to several new products including A1F3(NH3)2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 495: Symposium W – Chemical Aspects of Electronic Ceramics Processing , 1997 , 367
Copyright
Copyright © Materials Research Society 1998

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References

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