کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9829272 | 1524487 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Carrier gas and position effects on GaN growth in a horizontal HVPE reactor: An experimental and numerical study
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The results of an experimental and numerical study on the effect of carrier gas on the HVPE growth of GaN in a horizontal reactor are reported. A surprising result is that both the maximum and the total growth rate under 85Â vol% H2 are higher than under N2 carrier gas. Computational fluid dynamics studies show that an alteration of the flow pattern caused by buoyancy effects is responsible for the increase in growth rate. A second factor influencing the growth rate is the diffusion coefficient; the net effect of the diffusion coefficient depends on the carrier gas. The deposition rate of GaN depends on both the carrier gas and the position relative to the GaCl inlet. The experiments show that the quality of the grown layers (as measured with XRD and PL) increases with increasing H2 content. The calculated and experimental data show a very good qualitative correspondence.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 285, Issues 1â2, 15 November 2005, Pages 31-40
Journal: Journal of Crystal Growth - Volume 285, Issues 1â2, 15 November 2005, Pages 31-40
نویسندگان
C.E.C. Dam, P.R. Hageman, P.K. Larsen,