title: Dielectrophoresis field flow fractionation of single-walled carbon nanotubes.
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 mum. 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.
authors.affiliation: Carbon Nanotechnology Laboratory, Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 6100 South Main Street, Houston, TX 77005, USA.
authors.forename: Haiqing
authors.initials: H
authors.lastname: Peng
authors.forename: Noe T
authors.initials: NT
authors.lastname: Alvarez
authors.forename: Carter
authors.initials: C
authors.lastname: Kittrell
authors.forename: Robert H
authors.initials: RH
authors.lastname: Hauge
authors.forename: Howard K
authors.initials: HK
authors.lastname: Schmidt
mesh_terms: D046209:Electrophoresis, Microchip / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D037742:Nanotubes, Carbon