کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1489935 | 992314 | 2011 | 6 صفحه PDF | دانلود رایگان |

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.
Journal: Materials Research Bulletin - Volume 46, Issue 10, October 2011, Pages 1686–1691