High purity nanotube fabrics and films
First Claim
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1. A nanotube film on a substrate, comprising:
- an network of connected nanotubes on a substrate, wherein the nanotubes form a film of substantially uniform porosity or thickness, and wherein the film comprises less than about 1×
1018 atoms/cm2 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
35 Claims
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1. A nanotube film on a substrate, comprising:
an network of connected nanotubes on a substrate, wherein the nanotubes form a film of substantially uniform porosity or thickness, and wherein the film comprises less than about 1×
1018 atoms/cm2 of metallic impurities.- View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A nanotube film on a substrate, comprising:
an network of connected nanotubes on a substrate, wherein the nanotubes form a film of substantially uniform porosity or thickness, and wherein the film is substantially free of particle impurities having a diameter of greater than about 500 nm. - View Dependent Claims (2, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An assembly including a substrate and a conductive element disposed on the substrate, wherein the element comprises an electrical network of nanotubes contact other nanotubes to define a plurality of conductive pathways along the element, said nanotubes network comprising less than 1×
- 1018 atoms/cm2 of metal impurities.
- View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
Specification