کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1331176 | 978997 | 2010 | 7 صفحه PDF | دانلود رایگان |
In this paper, we investigate the roles of gold catalysts and thermal evaporation method modifications in the growth process of Zn1−xMgxO nanowires. Zn1−xMgxO nanowires are fabricated on silicon substrates with and without using a gold catalyst. Characterizations reveal that Mg acts in a self-catalyst role during the growth process of Zn1−xMgxO nanowires grown on catalyst-free substrate. The optical properties and crystalline quality of the Zn1−xMgxO nanowires are characterized by room temperature photoluminescence (PL) measurements and Raman spectroscopy, respectively. The Raman and PL studies demonstrate that the Zn1−xMgxO nanowires grown using the catalyst-free method have good crystallinity with excellent optical properties and have a larger band-gap in comparison to those grown with the assistance of gold.
ZnMgO nanowires can be formed with and without gold catalyst by a modified thermal evaporation method.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 183, Issue 7, July 2010, Pages 1733–1739