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Adv Mater. 2014 Sep 17;26(35):6151-6. doi: 10.1002/adma.201401108. Epub 2014 Jul 22.

Top-down patterning and self-assembly for regular arrays of semiconducting single-walled carbon nanotubes.

Author information

1
Department of Chemistry and Laboratory for Advanced Materials, Stanford University, Stanford, CA, 94305, USA.

Abstract

Highly pure semiconducting single-walled carbon nanotubes (SWNTs), sorted by density-gradient ultracentrifugation, undergo self-assembly using depletion attraction forces into rafts along lithographically defined patterns of narrow pitch (100 or 200 nm). The arrays demonstrate high pattern fidelity and channel filling, along with large-scale homogeneity. Field-effect transistors made from these arrays exhibit high performance at on/off ratios>1000.

KEYWORDS:

carbon nanotubes; field-effect transistors; nanostructures; nanotechnology; self-assembly

PMID:
25047392
DOI:
10.1002/adma.201401108

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