Dielectrophoresis Field Flow Fractionation of Single-Walled Carbon Nanotubes
- 9 June 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 128 (26), 8396-8397
- https://doi.org/10.1021/ja0621501
Abstract
We report a study on Dielectrophoresis Field Flow Fractionation of Single-Wall Carbon Nanotubes (SWNTs). SWNTs, individually suspended in 1% SDBS solution, were separated by type when they passed a dielectrophoresis field flow fractionation device where 1 MHz AC voltage was supplied and the field strength was well below 1 V per μm. Furthermore, we uniquely observed enrichment of semiconductive SWNTs based on their band gap. In addition to Raman spectrum, UV−vis absorption and NIR fluorescence spectra were used for solution samples for characterization.Keywords
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