کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1794909 1023709 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of GaN crystal by the reaction of Ga with Li3N in NH3 atmosphere
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Synthesis of GaN crystal by the reaction of Ga with Li3N in NH3 atmosphere
چکیده انگلیسی

A novel method to synthesize GaN crystals was studied by the reaction of Ga with Li3N under NH3 atmosphere. We have already reported the synthesis technique of GaN by the reaction of Ga2O3 with Li3N. However, the size of GaN crystals obtained by this method was limited to be smaller than several micrometers because of the solid phase reaction. In order to increase the size of GaN crystals, the method using liquid Ga as gallium source was studied for solid–liquid phase reaction. We found that the GaN crystals with the size of more than 100 μm were synthesized at 750 °C for 24 h under NH3 atmosphere. We propose the possible reaction mechanism as follows. Lithium amide (LiNH2) is synthesized by the reaction of Li3N with NH3 gas and then the crystal growth of GaN occurs by the reaction of Ga with LiNH2. We found that LiNH2 is a useful nitrogen source for the GaN synthesis method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 311, Issue 10, 1 May 2009, Pages 3040–3043
نویسندگان
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