کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1489935 992314 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of geometric structure, orientation and size on structural stability and thermal behavior of zinc oxide nanowires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Effects of geometric structure, orientation and size on structural stability and thermal behavior of zinc oxide nanowires
چکیده انگلیسی

The structural stability, orientation effect and melting characteristic of zinc oxide (ZnO) nanowires are simulated by using the molecular dynamics with many-body tightbinding potential. The structural stability is affected by the geometric shape of the cross section of a nanowire. The nanowire with a hexagonal cross section is more stable than that with another cross section type, namely, a rectangular, triangular, rhombohedral, octagonal, and circular cross section. The structural stability and melting temperature of a nanowire is sensitive to its diameter because of the surface energy and unfavorable coordination. Remarkably, it is observed that hexagonal ZnO nanowires transform to metastable circular-type structures at temperatures lower than the melting point.

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► The structural stability, orientation effect and melting characteristic of zinc oxide (ZnO) nanowires are simulated by using the molecular dynamics with many-body tightbinding potential.
► The nanowire with a hexagonal cross section is more stable than that with other cross section type, namely, a rectangular, triangular, rhombohedral, octagonal, and circular cross section.
► The structural stability and melting temperature of a nanowire is sensitive to its diameter because of the surface energy and unfavorable coordination.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 46, Issue 10, October 2011, Pages 1686–1691
نویسندگان
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