Top-down patterning and self-assembly for regular arrays of semiconducting single-walled carbon nanotubes.
basic_science · Level V
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- Record sourced from PubMed, PMID 25047392.
- Also identified by DOI 10.1002/adma.201401108.
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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.