简介:Self-Assembly of Large-Scale Micropatterns on Aligned Carbon Nanotube Films
The fabrication of well-defined structures with nanoscale
materials is a key technology,[1] and self-assembly is an
efficient and often pre简介:Self-Assembly of Large-Scale Micropatterns on Aligned Carbon Nanotube Films
The fabrication of well-defined structures with nanoscale
materials is a key technology,[1] and self-assembly is an
efficient and often preferred process to build micro- and
nanoparticles into ordered macroscopic structures.[2] As
carbon nanotubes are attractive materials for nanotechnology
because of their interesting physicochemical properties and
molecular symmetries,[3–6] it is necessary to control the
architecture of carbon nanotubes on the substrates. Most
patterned carbon nanotubes are formed on prepatterned
substrates or prepatterned catalysts during the fabrication
process.[7–9] Herein we report the first use of a long-range
force (capillary force) in the self-assembly of three-dimensional
(3D) micropatterns on aligned carbon nanotube films
through a water-spreading method after the growth of the
carbon nanotube. It is considered that low-density regions or
vacancies of carbon nanotube films play an important role in
the formation of the pattern. Therefore different kinds of
highly ordered micropatterned structures have been built in a
controlled fashion by introducing vacancies artificially.
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