کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1515657 1511535 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Alignment-controlled hydrothermal growth of well-aligned ZnO nanorod arrays
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Alignment-controlled hydrothermal growth of well-aligned ZnO nanorod arrays
چکیده انگلیسی


• A simple new method was introduced to evaluate the alignment of ZnO arrays.
• Well-aligned ZnO nanorod arrays were prepared.
• A growth mechanism was proposed for the growth of ZnO nanorods.

ZnO nanorod arrays (ZNAs) were prepared via a two-step seeding and solution hydrothermal growth process. Effects of preparing parameters such as seed layer, colloid concentration, substrate and precursor concentration, on the alignment control of ZNAs were systematically investigated. The deviation angle of ZnO nanorods was measured to evaluate the alignment of arrays. Results show that seed layer not only controls the vertical orientation of ZNAs, but also the compactness of ZNAs. Altering colloid concentration and substrate can influence the microstructure of ZnO seed layer and affect the ordered alignment of ZNAs. The precursor concentration has an insignificant effect on the alignment of ZNAs but has great impact on the morphology of ZNAs. Alignment-controlled and well-aligned ZnO nanorods with different diameter and aspect ratio can be obtained by properly controlling the preparing parameters. A growth mechanism was proposed for the growth of ZnO nanorods.

ZnO nanorod arrays (ZNAs) were prepared via a two-step seeding and solution hydrothermal growth process. A simple new method was introduced to evaluate the alignment of arrays based on the orientation angle distribution. Effects of preparing parameters, such as seed layer, colloid concentration, substrate and precursor concentration, on the alignment control of ZNAs were systematically investigated. A growth mechanism was proposed for the growth of ZnO nanorods.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 75, Issue 7, July 2014, Pages 808–817
نویسندگان
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