Process for obtaining bulk mono-crystalline gallium-containing nitride
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United States of America Patent
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Jan 1, 2008
Grant Date -
Jun 8, 2006
app pub date -
Dec 11, 2003
filing date -
Dec 11, 2002
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Abstract
An improved mineralizer used for a process for obtaining bulk mono-crystalline gallium-containing nitride of a general formula of Al.sub.xGa.sub.1-xN, where 0.ltoreq..times.<1 in an environment of supercritical ammonia-containing solution has been now proposed. According to the invention growth rate and quality of the product obtained can be controlled by suitable selection of mineralizer, so as to ensure presence of ions of Group I element (IUPAC 1989), preferably sodium in combination with other components selected from the group consisting of Group I elements (IUPAC 1989), ions of Group II elements (IUPAC 1989), one or more substances containing oxygen-free species causing some weakening of the ammono-basic nature of the supereritical solvent, optionally in combination with Group II elements (JUPAC 1989), preferably calcium or magnesium.
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