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ACS Nano. 2016 Feb 23;10(2):1888-95. doi: 10.1021/acsnano.5b05572. Epub 2016 Jan 26.

Length-Sorted, Large-Diameter, Polyfluorene-Wrapped Semiconducting Single-Walled Carbon Nanotubes for High-Density, Short-Channel Transistors.

Author information

1
Institute of Nanotechnology, Karlsruhe Institute of Technology , D-76021 Karlsruhe, Germany.
2
Department of Materials and Earth Sciences, Technische Universit├Ąt Darmstadt , D-64287 Darmstadt, Germany.
3
Institute of Physical Chemistry, Karlsruhe Institute of Technology , D-76128 Karlsruhe, Germany.

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 ├Ś 10(8).

KEYWORDS:

carbon nanotubes; chromatography; dielectrophoresis; polymer wrapping; transistor

PMID:
26792404
DOI:
10.1021/acsnano.5b05572

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