title: Top-down patterning and self-assembly for regular arrays of semiconducting single-walled carbon nanotubes.
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.
authors.affiliation: Department of Chemistry and Laboratory for Advanced Materials, Stanford University, Stanford, CA, 94305, USA.
authors.forename: Justin
authors.initials: J
authors.lastname: Wu
authors.forename: Alexander
authors.initials: A
authors.lastname: Antaris
authors.forename: Ming
authors.initials: M
authors.lastname: Gong
authors.forename: Hongjie
authors.initials: H
authors.lastname: Dai
keywords: carbon nanotubes; field-effect transistors; nanostructures; nanotechnology; self-assembly