GERMANIUM-DOPED GALLIUM NITRIDE CRYSTAL AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To easily and stably obtain high luminance germanium-doped gallium nitride crystals of high quality as a phosphor material at a low cost.;SOLUTION: Solid digallium trioxide (Ga₂O₃) is thermally reduced using a reducing agent, so as to produce digallium monoxide (Ga₂O) gas. Solid germanium dioxide (GeO₂) is thermally reduced using a reducing agent, so as to produce germanium monoxide (GeO) gas. Digallium monoxide is brought into reaction with ammonia (NH₃)-containing gas in the presence of the germanium monoxide gas, so as to produce germanium (Ge)-doped gallium nitride (GaN) crystals.;COPYRIGHT: (C)2008,JPO&INPIT