HELICALLY COILED CARBON NANOTUBES

Mechanical Resonances of Helically Coiled Carbon Nanowires

Despite their wide spread applications, the mechanical behavior of helically coiled structures has evaded an accurate understanding at any length scale (nano to macro) mainly due to their geometrical complexity. The advent of helically coiled micro/nanoscale structures in nano-robotics, nano-inductors, and impact protection coatings has necessitated the development of new methodologies for dete...

Carbon Nanotubes in Helically Modulated Potentials

We calculate effects of an applied helically symmetric potential on the low energy electronic spectrum of a carbon nanotube in the continuum approximation. The spectrum depends on the strength of this potential and on a dimensionless geometrical parameter, P, which is the ratio of the circumference of the nanotube to the pitch of the helix. We find that the minimum band gap of a semiconducting ...

Helically Coiled Heat Exchangers

Toroidal and Coiled Carbon Nanotubes

Rational Synthesis of Helically Coiled Carbon Nanowires and Nanotubes through the Use of Tin and Indium Catalysts

Helically coiled carbon nanotubes (HCNTs) and nanowires (HCNWs) represent novel nanostructural morphology and have technological and scientific significance. Their potential applications span high frequency electronics, tactile and magnetic sensors, and structural foams for cushioning and energy dissipation. It is also interesting to make a connection between the CVD synthesized helical carbon ...