title: Length-Sorted, Large-Diameter, Polyfluorene-Wrapped Semiconducting Single-Walled Carbon Nanotubes for High-Density, Short-Channel Transistors.
abstract: Samples of highly enriched semiconducting SWCNTs with average diameters of 1.35 nm have been prepared by combining PODOF polymer wrapping with size-exclusion chromatography. The purity of the material was determined to be >99.7% from the transfer characteristics of short-channel transistors comprising densely aligned sc-SWCNTs. The transistors have a hole mobility of up to 297 cm(2)V(-1) s(-1) and an On/Off ratio as high as 2 × 10(8).
authors.affiliation: Institute of Nanotechnology, Karlsruhe Institute of Technology , D-76021 Karlsruhe, Germany.
authors.forename: Frank
authors.initials: F
authors.lastname: Hennrich
authors.affiliation: Institute of Nanotechnology, Karlsruhe Institute of Technology , D-76021 Karlsruhe, Germany.|Department of Materials and Earth Sciences, Technische Universität Darmstadt , D-64287 Darmstadt, Germany.
authors.forename: Wenshan
authors.initials: W
authors.lastname: Li
authors.affiliation: Institute of Physical Chemistry, Karlsruhe Institute of Technology , D-76128 Karlsruhe, Germany.
authors.forename: Regina
authors.initials: R
authors.lastname: Fischer
authors.affiliation: Institute of Nanotechnology, Karlsruhe Institute of Technology , D-76021 Karlsruhe, Germany.
authors.forename: Sergei
authors.initials: S
authors.lastname: Lebedkin
authors.affiliation: Institute of Nanotechnology, Karlsruhe Institute of Technology , D-76021 Karlsruhe, Germany.|Department of Materials and Earth Sciences, Technische Universität Darmstadt , D-64287 Darmstadt, Germany.
authors.forename: Ralph
authors.initials: R
authors.lastname: Krupke
authors.affiliation: Institute of Nanotechnology, Karlsruhe Institute of Technology , D-76021 Karlsruhe, Germany.|Institute of Physical Chemistry, Karlsruhe Institute of Technology , D-76128 Karlsruhe, Germany.
authors.forename: Manfred M
authors.initials: MM
authors.lastname: Kappes
keywords: carbon nanotubes; chromatography; dielectrophoresis; polymer wrapping; transistor