کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
701233 | 890988 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vibrational properties of nitrogen-doped ultrananocrystalline diamond films grown by microwave plasma CVD
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Vibrational properties of nitrogen-doped ultrananocrystalline diamond films grown by microwave plasma CVD Vibrational properties of nitrogen-doped ultrananocrystalline diamond films grown by microwave plasma CVD](/preview/png/701233.png)
چکیده انگلیسی
Ultrananocrystalline diamond (UNCD) films grown in an argon-rich Ar/CH4/H2 microwave plasma with nitrogen gas added in amounts of 0%–20% were studied by Raman spectroscopy with multiple excitation wavelengths in the range of 244–647 nm and by optical absorption in UV–visible. The Raman spectra have demonstrated the presence of diamond, amorphous carbon and polyacetylene in the UNCD films. Analysis of vibrational and optical properties of amorphous carbon phase proves that nitrogen stimulates the transition from amorphous carbon into an ordered graphite-like structure with narrowed optical band gap, which is supposed to be responsible for the high electrical conductivity of the N-doped UNCD.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 16, Issue 12, December 2007, Pages 2074–2077
Journal: Diamond and Related Materials - Volume 16, Issue 12, December 2007, Pages 2074–2077
نویسندگان
I.I. Vlasov, E. Goovaerts, V.G. Ralchenko, V.I. Konov, A.V. Khomich, M.V. Kanzyuba,