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

  • Joseph W. Kolis (a1), Steven Wilcenski (a1) and Robert A. Laudise (a2)

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.

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

  • Joseph W. Kolis (a1), Steven Wilcenski (a1) and Robert A. Laudise (a2)

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