کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460595 | 1516195 | 2017 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of molar ratio of Sb/Zn on the crystal, electrical and optical properties of Sb-doped ZnO films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Sb-doped p-type ZnO films were grown on sapphire substrate by metal organic chemical vapor deposition method. The influence of the molar ratio of Sb/Zn on the crystal, electrical and optical properties of the Sb-doped ZnO films was investigated by X-ray diffraction (XRD), Hall measurement system, optical absorption and photoluminescence spectroscopy. XRD patterns revealed all Sb-doped ZnO films were polycrystalline structures with strong c-axis orientation preferred. Electrical measurement results indicated Sb-doped ZnO films exhibited p-type electrical properties, and carrier concentrations were in the range of 10â17-10â18Â cmâ3. Low temperature photoluminescence measurement confirmed the existence of Sb in Sb-doped ZnO film. The photoluminescence spectrum of the Sb-doped ZnO film revealed the transition between the free electrons and acceptors peak at 3.243Â eV, the acceptor-bound exciton peak at 3.319Â eV and the donor-acceptor pair exciton at 3.200Â eV. The thermal binding energy of the Sb accepter was estimated to be 0.19Â eV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 699, 30 March 2017, Pages 690-694
Journal: Journal of Alloys and Compounds - Volume 699, 30 March 2017, Pages 690-694
نویسندگان
Yi Cheng, Kun Yang, Jixiang Chen, Li Che, Xizhen Zhang,