Spin-coatable liquid for formation of high purity nanotube films
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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Abstract
Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes 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, and wherein the spin-coatable liquid comprises less than 1×1018 atoms/cm3 of metal impurities. The spin-coatable liquid is substantially free of particle impurities having a diameter of greater than about 500 nm.
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Citations
19 Claims
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1. An applicator liquid comprising:
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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, and wherein the applicator liquid comprises less than 1×
1018 atoms/cm3 of metallic impurities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification