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J Am Chem Soc. 2009 Jan 14;131(1):62-3. doi: 10.1021/ja808593v.

Chirality-dependent transport properties of double-walled nanotubes measured in situ on their field-effect transistors.

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  • 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.


Double-walled carbon nanotubes (DWNT), consisting of two coaxial tubes, is an ideal structure for chemical and physical applications. It is of essential importance to probe the one-to-one relationship between electrical transport and chiral structure of DWNTs. Here, the chirality-dependent transport properties of DWNTs have been systematically investigated in situ on their field-effect transistors, through building DWNT-based field-effect transistors into a transmission electron microscope. The transport characteristics of DWNTs can be directly correlated with their chiral indices, and the probe of inner tubes has also been achieved in situ.

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