Sorting of CVD-grown single-walled carbon nanotubes by means of gel column chromatography
Article first published online: 15 NOV 2013
© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
physica status solidi (b)
Volume 250, Issue 12, pages 2564–2568, December 2013
How to Cite
Ostermaier, F. and Mertig, M. (2013), Sorting of CVD-grown single-walled carbon nanotubes by means of gel column chromatography. Phys. Status Solidi B, 250: 2564–2568. doi: 10.1002/pssb.201300080
- Issue published online: 4 DEC 2013
- Article first published online: 15 NOV 2013
- Manuscript Accepted: 17 OCT 2013
- Manuscript Revised: 10 SEP 2013
- Manuscript Received: 15 APR 2013
- gel chromatography;
- single-walled carbon nanotubes
We report the use of scalable gel column chromatography to sort single-walled carbon nanotubes (SWCNTs) from different production schemes according to their electronic properties. We show that this method, originally developed for HiPCO® tubes, can equally well be applied to the sorting of commercially available SWCNTs produced by CVD. We use UV–Vis spectroscopy for the quantitative characterization of the samples. It allows a fast determination of the mSWCNT and scSWCNT contents in a sample with only few preliminary information. For further prove, we assembled field-effect transistors (FETs) from enriched semiconducting suspensions by dielectrophoresis. The measurement of the I–V curves approves that FETs with reasonable electrical performance can be assembled in a single preparation step.
Schematic viewgraph of the sorting procedure using sephacryl gel.