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Spin-coatable liquid for formation of high purity nanotube films

  • US 8,147,722 B2
  • Filed: 07/25/2007
  • Issued: 04/03/2012
  • Est. Priority Date: 09/08/2003
  • Status: Active Grant
First Claim
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1. An applicator liquid comprising:

  • a liquid medium containing a controlled concentration of purified nanotubes,wherein the controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity, wherein the controlled concentration is from about 1 mg/L to 100 g/L,wherein the purified nanotubes remain separate from one another without precipitation or flocculation for a time sufficient to apply the applicator liquid to a surface,wherein the purified nanotubes are free of functionalization that deplete π

    electrons so that desired electrical properties of the nanotubes are maintained,wherein the applicator liquid is free of surfactants and polymers, andwherein the applicator liquid comprises less than 1×

    1018 atoms/cm3 of metallic impurities.

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