کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1526627 | 995373 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A third kind growth model of tetrapod: Rod-based single crystal ZnO tetrapod nanostructure
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this paper, rod-based ZnO tetrapods were successfully synthesized by burning Zn particles in air covered with two firebricks. The products show hexagonal wurtzite phase. The microstructures of the tetrapod were studied carefully by scanning electron microscope (SEM), transmission electron microscope (TEM), SAED and HRTEM. The results show that tetrapod has single crystalline phase with one broader nanorod growing along [0 0 0 1] direction, three triangular nanosheets, growing out of the three trisection planes along [101¯0] direction, and three epitaxial nanowires, growing from each tip of the triangular nanosheets. Based on the experimental results, a rod-based growth model was proposed to interpret its growth mechanism. Room temperature photoluminescence spectrum reveals that the ZnO tetrapods have ultra violet (UV) emission band (389 nm) and a green emission band (517 nm).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 112, Issue 3, 20 December 2008, Pages 749-752
Journal: Materials Chemistry and Physics - Volume 112, Issue 3, 20 December 2008, Pages 749-752
نویسندگان
J.F. Gong, H.B. Huang, Z.Q. Wang, X.N. Zhao, S.G. Yang, Zhong-Zhen Yu,