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Extracting subnanometer single shells from ultralong multiwalled carbon nanotubes
Cited 60 time in
Web of Science
Cited 69 time in Scopus
- Authors
- Issue Date
- 2005-10
- Publisher
- National Academy of Sciences
- Citation
- Proceedings of the National Academy of Sciences of the United States of America, Vol.102 No.40, pp.14155-14158
- Abstract
- We report a simple but powerful method for engineering multi-walled carbon nanotubes (MWNTs) by using manipulation by an atomic-force microscope. The successive shell-by-shell extraction process of ultralong MWNTs allows the exposure of the innermost single-walled carbon nanotubes (SWNTs), which have diameters as small as approximate to 0.4 nm. The inner-shell extraction process changes the electrical characteristics of the MWNTs. Whereas the outer hollowed-out nanotubes show either metallic or semiconducting character, the innermost SWNTs of small diameter exhibit predominantly metallic transport properties.
- ISSN
- 0027-8424
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