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Preparation of GaN Crystals by Heating a Li3N-Added Ga Melt in Na Vapor and Their Photoluminescence.

✍ Scribed by Takahiro Yamada; Hisanori Yamane; Takaaki Ohta; Takenari Goto; Takafumi Yao

Publisher: John Wiley and Sons
Year: 2007
Weight: 13 KB
Volume: 38
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200712005

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## Abstract Colorless transparent prismatic crystals (0.5‐2.0 mm long) and hopper crystals (1.0‐2.5 mm long) of GaN were prepared by heating a Ga melt at 800°C in Na vapor under N~2~ pressures of 7.0 MPa for 300 h. The photoluminescence (PL) spectrum of a prismatic crystal at 4 K showed the emissio