کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7957006 | 1513859 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calculation of electronic and optical properties of surface InxGa1âxP and indium-gradient structure on GaP (0â¯0â¯1)
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Electronic and optical properties such as the density of states, dielectric function, absorption, reflectivity, loss function and refractive index of surface InxGa1âxP(0â¯0â¯1) are investigated first time with first principle methods based on plane-wave pseudo-potentials method within the LDA approximation in this paper, and the results show that the physical properties are much different from bulk materials. The physical properties of surface In0.25Ga0.75P is observed to be very different from In0.5Ga0.5P and In0.75Ga0.25P and the causes are analyzed in this paper. An indium-gradient surface InxGa1âxP structure has been calculated first time as well, and small differences in electronic and optical properties are found from In0.5Ga0.5P and indium-gradient structures except for xâ¯=â¯(0.75, 0.25, 0.5), by which a new way is found to improve the physical properties with a given indium composition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 153, October 2018, Pages 356-362
Journal: Computational Materials Science - Volume 153, October 2018, Pages 356-362
نویسندگان
XueFei Liu, ZiJiang Luo, Xun Zhou, JieMin Wei, Yi Wang, Xiang Guo, QiZhi Lang, Zhao Ding,