کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1546184 | 997610 | 2010 | 5 صفحه PDF | دانلود رایگان |
Pure and Mg-doped zinc oxide (ZnO:Mg) films were deposited using RF reactive magnetron sputtering at different oxygen partial pressures. The microstructures and optical properties in doped ZnO films were systematically investigated by X-ray diffraction (XRD), scanning electronic microscopy (SEM) and fluorescence spectrophotometer. The results indicated that ZnO grain orientation behavior was significantly affected by Mg-doping. And the ZnO:Mg film prepared at 15:10 had the best crystal quality among all ZnO:Mg films. The photoluminescence (PL) measurements at room temperature revealed a violet, two blue and a green emission. The origin of these emissions was discussed. It was also demonstrated that the optical band edge shifted to a shorter wavelength first as Mg was incorporated, and then to a longer wavelength with the increasing of oxygen partial pressures.
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 42, Issue 5, March 2010, Pages 1487–1491