کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1615219 1516346 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
RF sputtering enhanced the morphology and photoluminescence of multi-oriented ZnO nanostructure produced by chemical vapor deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
RF sputtering enhanced the morphology and photoluminescence of multi-oriented ZnO nanostructure produced by chemical vapor deposition
چکیده انگلیسی

Pure hexagonal wurtzite ZnO nanostructure was successfully synthesized by chemical vapor deposition (CVD) and RF-magnetron sputtering without using any catalysts. In the two-step process, high-quality multi-oriented ZnO nanorods were obtained. Multi-oriented spear-like ZnO rods were pre-deposited on the SiO2/Si(1 0 0) substrate by CVD at 700 °C followed by RF sputtering of the ZnO nanostructure. The synthesized ZnO nanostructures were characterized by X-ray diffraction, field emission scanning electron microscopy, and photoluminescence (PL). The results show that the RF sputtering of the ZnO nanostructure, which was coated with a ZnO film produced by CVD, might have promoted the uniformity and crystalline quality of the multi-oriented spear-like ZnO film. The PL spectra revealed a sharp and dominant peak located at approximately 382 nm with a UV-to-visible PL intensity ratio (IUV/IVS) of 42 for the sample that was produced by the two-step process. The growth mechanism of the multi-oriented spear-like ZnO nanorods was investigated.

Figure optionsDownload as PowerPoint slideHighlights
► A ZnO nanostructure was synthesized using the CVD and RF techniques.
► High-quality ZnO nanorods were obtained.
► The nanorods grow at a random angle on the substrate surface.
► The RF sputter-coating step enhanced the structural quality of the ZnO film.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 547, 15 January 2013, Pages 132–137
نویسندگان
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