کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1621586 1516396 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on chemical etching process of ZnO nanorods toward nanotubes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Investigation on chemical etching process of ZnO nanorods toward nanotubes
چکیده انگلیسی

High-density vertically aligned ZnO nanotube arrays were prepared on ITO-coated glass substrates by a simple and facile chemical etching process from electrodeposited ZnO nanorods. The as-prepared nanotubes are single crystal, with hexagonal cross-section, a diameter of about 400 nm and a uniform central pore. Such ZnO nanotube arrays exhibited strong ultraviolet emissions at 372 nm at room temperature but negligibly defect-related visible emissions, indicating their high crystallinity and excellent optical quality. The nanotube formation was rationalized in terms of selective dissolution of the metastable Zn-rich (0 0 1) polar face. It was proposed that the diameters of the ZnO nanorods played a key role in the nanotube formation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 481, Issues 1–2, 29 July 2009, Pages 397–401
نویسندگان
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