Nanotube films and articles and methods of making the same are disclosed.
A conductive article includes an aggregate of nanotube segments in which
the nanotube segments contact other nanotube segments to define a
plurality of conductive pathways along the article. The nanotube segments
may be single walled carbon nanotubes, or multi-walled carbon nanotubes.
The various segments may have different lengths and may include segments
having a length shorter than the length of the article. The articles so
formed may be disposed on substrates, and may form an electrical network
of nanotubes within the article itself. Conductive articles may be made
on a substrate by forming a nanotube fabric on the substrate, and
defining a pattern within the fabric in which the pattern corresponds to
the conductive article. The nanotube fabric may be formed by growing the
nanotube fabric on the substrate using a catalyst, for example, in which
the catalyst is a gas phase catalyst, or in which the catalyst is a
metallic gas phase catalyst. The nanotube fabric may be formed by
depositing a solution of suspended nanotubes on the substrate. The
deposited solution may be spun to create a spin-coating of the solution.
The solution may be deposited by dipping the substrate into the solution.
The nanotube fabric is formed by spraying an aerosol having nanotubes
onto a surface of the substrate.