کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5363734 | 1388305 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Band gap energy and bowing parameter of In-rich InAlN films grown by magnetron sputtering
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The crystal structure, band gap energy and bowing parameter of In-rich InxAl1âxN (0.7 < x < 1.0) films grown by magnetron sputtering were investigated. Band gap energies of InxAl1âxN films were obtained from absorption spectra. Band gap tailing due to compositional fluctuation in the films was observed. The band gap of the as-grown InN measured by optical absorption method is 1.34 eV, which is larger than the reported 0.7 eV for pure InN prepared by molecular beam epitaxy (MBE) method. This could be explained by the Burstein-Moss effect under carrier concentration of 1020 cmâ3 of our sputtered films. The bowing parameter of 3.68 eV is obtained for our InxAl1âxN film which is consistent with the previous experimental reports and theoretical calculations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 6, 1 January 2010, Pages 1812-1816
Journal: Applied Surface Science - Volume 256, Issue 6, 1 January 2010, Pages 1812-1816
نویسندگان
Hong He, Yongge Cao, Renli Fu, Wang Guo, Zhi Huang, Meili Wang, Changgang Huang, Jiquan Huang, Hai Wang,