Control of the Growth Habit in the Na Flux Growth of GaN Single Crystals

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Abstract:

Seeded growth of gallium nitride (GaN) crystals on a spontaneously nucleated small GaN by the Na flux method was performed. In this study, we attempted to control the growth habit by changing the flux composition (Ga/Na) and by introducing a small amount of additives (Ca and Li). Our experiment clarified that a low Ga composition was preferred to grow high-crystallinity prismatic GaN crystals with a high growth rate. Furthermore, the transparent GaN single crystals with prism shape could be grown by the addition of Ca and Li.

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Materials Science Forum (Volumes 717-720)

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1291-1294

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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