Dual-mode mechanical resonance of individual ZnO nanobelts
Dual-mode mechanical resonance of individual ZnO nanobelts
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DOI：
10.1063/1.1587878
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发表时间：
2003-06-30
影响因子：
4
通讯作者：
Wang, EG
中科院分区：
文献类型：
--
作者：
Bai, XD;Gao, PX;Wang, EG
利用透射电子显微镜原位研究了单个ZnO纳米带在交变电场作用下的机械共振现象。由于纳米带的矩形横截面，已经观察到对应于两个正交横向振动方向的两个基本谐振模式，显示了纳米带作为纳米悬臂梁和纳米谐振器的多用途应用。测得ZnO纳米带的弯曲模量与52 GPa相似，在5x 10（-8）Torr真空中谐振的阻尼时间常数与1.2 ms相似，品质因子Q=500。(C)2003年，美国物理学会。
The mechanical resonance of a single ZnO nanobelt, induced by an alternative electric field, was studied by in situ transmission electron microscopy. Due to the rectangular cross section of the nanobelt, two fundamental resonance modes have been observed corresponding to two orthogonal transverse vibration directions, showing the versatile applications of nanobelts as nanocantilevers and nanoresonators. The bending modulus of the ZnO nanobelts was measured to be similar to52 GPa and the damping time constant of the resonance in a vacuum of 5x10(-8) Torr was similar to1.2 ms and quality factor Q=500. (C) 2003 American Institute of Physics.