Coaxial nanocable: silicon carbide and silicon oxide sheathed with boron nitride and carbon
Coaxial nanocable: silicon carbide and silicon oxide sheathed with boron nitride and carbon
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DOI：
10.1126/science.281.5379.973
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发表时间：
1998-08
期刊：
影响因子：
56.9
通讯作者：
Yuegang Zhang;Kazu Suenaga;Christian Colliex;Sumio Iijima
中科院分区：
文献类型：
--
作者：
Yuegang Zhang;Kazu Suenaga;Christian Colliex;Sumio Iijima
通过反应激光烧蚀成功合成了包含多相的多元素纳米管，直径为几十纳米，长度可达50微米。实验确定的结构由β相碳化硅核心、非晶氧化硅中间层以及由氮化硼和沿径向分离的碳层制成的石墨外壳组成。该结构类似于具有半导体-绝缘体-金属（或半导体-绝缘体-半导体）几何形状的同轴纳米电缆，并建议在纳米级电子器件中应用，利用这种自组织机制来形成多元素纳米管。
Multielement nanotubes comprising multiple phases, with diameters of a few tens of nanometers and lengths up to 50 micrometers, were successfully synthesized by means of reactive laser ablation. The experimentally determined structure consists of a beta-phase silicon carbide core, an amorphous silicon oxide intermediate layer, and graphitic outer shells made of boron nitride and carbon layers separated in the radial direction. The structure resembles a coaxial nanocable with a semiconductor-insulator-metal (or semiconductor-insulator-semiconductor) geometry and suggests applications in nanoscale electronic devices that take advantage of this self-organization mechanism for multielement nanotube formation.