کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1624119 1516410 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low temperature solution-synthesis and photoluminescence properties of ZnO nanowires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Low temperature solution-synthesis and photoluminescence properties of ZnO nanowires
چکیده انگلیسی

A general and simple approach has been developed to prepare zinc oxide (ZnO) nanowires from commercially available zinc acetate precursors using a solution-phase reaction. The influence of post-annealing temperature on the morphology of the zinc oxides nanowires was also investigated. Using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) studies, we confirm that the ZnO nanowires are highly crystalline in nature with preferential orientation in the c-axis direction, with nanowire diameters of around 30–60 nm. The photoluminescence (PL) studies demonstrate a strong UV luminescence band around 382 nm, and three weak, broad bands at 454, 468, and 510 nm, respectively, in the blue and green range. After being annealed under an air atmosphere, the products show an apparent red-shift in the UV emission band. The intensity of the defect-related emission bands was significantly suppressed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 467, Issues 1–2, 7 January 2009, Pages 342–346
نویسندگان
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