Heterostructures of ZnO–Zn coaxial nanocables and ZnO nanotubes
Heterostructures of ZnO–Zn coaxial nanocables and ZnO nanotubes
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DOI：
10.1063/1.1499512
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发表时间：
2002-08
影响因子：
4
通讯作者：
Jih-Jen Wu;S. C. Liu;C. Wu;Kuei-Hsien Chen;Li‐Chyong Chen
中科院分区：
文献类型：
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作者：
Jih-Jen Wu;S. C. Liu;C. Wu;Kuei-Hsien Chen;Li‐Chyong Chen
通过简单的热分解乙酰丙酮锌制备了平均直径为30 nm的Zn-ZnO同轴纳米电缆和ZnO纳米管异质结构。高分辨率透射电子显微镜分析表明，纳米电缆的Zn芯和ZnO鞘具有外延关系，它们的纵轴沿着001方向取向。ZnO纳米管的壁厚为4 nm，具有单晶结构，似乎是ZnO鞘的同轴纳米电缆的延伸。结果表明，ZnO纳米管是由Zn-ZnO同轴纳米电缆的Zn芯部分蒸发形成的。
The heterostructures of Zn–ZnO coaxial nanocables and ZnO nanotubes with an average diameter of 30 nm have been synthesized by simple pyrolysis of zinc acetylacetonate. High-resolution transmission electron microscopy analyses reveal that the Zn core and the ZnO sheath of the nanocables have an epitaxial relationship with their longitudinal axis oriented along the 〈001〉 direction. ZnO nanotubes with a wall thickness of 4 nm possess a single-crystal structure and appear to be the extension of the ZnO sheath of the coaxial nanocables. It is suggested that the ZnO nanotubes are formed by partial evaporation of Zn core of the Zn–ZnO coaxial nanocables.