Mild method for bulk enrichment of high‐aspect ratio SWNTs | Zendy

Vichchulada Pornnipa | Zendy; Vairavapandian Deepa | Zendy; Lay Marcus D. | Zendy

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Mild method for bulk enrichment of high‐aspect ratio SWNTs

Author(s) -

Vichchulada Pornnipa,

Vairavapandian Deepa,

Lay Marcus D.

Publication year - 2009

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.200802236

Subject(s) - aqueous suspension , centrifuge , amorphous solid , suspension (topology) , materials science , aqueous solution , chemical engineering , carbon nanotube , characterization (materials science) , nanotechnology , amorphous carbon , carbon fibers , metal , composite material , chemistry , organic chemistry , metallurgy , composite number , physics , mathematics , homotopy , nuclear physics , pure mathematics , engineering

This manuscript presents an effective method for the removal of amorphous carbon, metal catalyst particles and bundled SWNTs, while leaving long/undamaged SWNTs in aqueous suspension. This involves multiple centrifuge cycles at low rotational centrifugal force (RCF), facilitating the formation of suspensions of pristine SWNTs with lengths up to 5 μm. Electrical characterization of deposits formed from these suspensions demonstrates the efficacy of this purification technique for creation of thin‐film semiconductive materials.(© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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