Crystalline Ropes of Metallic Carbon Nanotubes

  title={Crystalline Ropes of Metallic Carbon Nanotubes},
  author={Andr{\'e} Thess and Roland Lee and Pavel N Nikolaev and Hongjie Dai and Pi{\`e}rre Petit and J. Robert and Chunhui Xu and Young Hee Lee and Seong-Gon Kim and Andrew G. Rinzler and Daniel T. Colbert and Gustavo E. Scuseria and David Tom{\'a}nek and John E. Fischer and Richard E. Smalley},
  pages={483 - 487}
Fullerene single-wall nanotubes (SWNTs) were produced in yields of more than 70 percent by condensation of a laser-vaporized carbon-nickel-cobalt mixture at 1200°C. X-ray diffraction and electron microscopy showed that these SWNTs are nearly uniform in diameter and that they self-organize into “ropes,” which consist of 100 to 500 SWNTs in a two-dimensional triangular lattice with a lattice constant of 17 angstroms. The x-ray form factor is consistent with that of uniformly charged cylinders 13… 

Conductivity enhancement in single-walled carbon nanotube bundles doped with K and Br

Single-walled carbon nanotubes (SWNTs), prepared by metal-catalysed laser ablation of graphite, form close-packed bundles or ‘ropes;. These rope crystallites exhibit metallic behaviour above 50K

Growth of single-wall carbon nanotubes within an ordered array of nanosize silica spheres

Single-wall carbon nanotubes (SWCNTs), which were well-separated individuals or, small bundles of two to five tubes, were produced in a controllable manner by disproportionation of CO at 700 °C and 1

Controlled production of aligned-nanotube bundles

Carbon nanotubes might be usefully employed in nanometre-scale engineering and electronics. Electrical conductivity measurements on the bulk material, on individual multi-walled and single-walled

Mono-dispersed single-wall carbon nanotubes formed in channels of zeolite crystal: Production, optical and electrical transport properties

Carbon nanotube materials can now be produced in macroscopic quantities. However, the raw material has a disordered structure and unsorted size, which restrict investigations of both the properties



Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls

CARBON exhibits a unique ability to form a wide range of structures. In an inert atmosphere it condenses to form hollow, spheroidal fullerenes1–4. Carbon deposited on the hot tip of the cathode of

Helical microtubules of graphitic carbon

THE synthesis of molecular carbon structures in the form of C60 and other fullerenes1 has stimulated intense interest in the structures accessible to graphitic carbon sheets. Here I report the

Single-shell carbon nanotubes of 1-nm diameter

CARBON nanotubes1 are expected to have a wide variety of interesting properties. Capillarity in open tubes has already been demonstrated2–5, while predictions regarding their electronic structure6–8

Defects in Carbon Nanostructures

The structures of the carbon nanotubes and particles were characterized here by bulk physical and chemical property measurements and indicate that they are highly defective and have a local structure similar to turbostratic graphite.

Structural properties of a carbon-nanotube crystal.

  • TersoffRuoff
  • Materials Science, Physics
    Physical review letters
  • 1994
The ordered condensed phase of carbon nanotubes is examined, finding that as the tube diameter varies, the structural properties show a clear transition between two regimes with qualitatively different behavior.

First-Principles Study of Carbon Nanotube Solid-State Packings

In the framework of the density functional theory, we study the energetics and geometry of three-dimensional solids made of single-shell carbon nanotubes. Amongst the investigated forms, a hexagonal

Unraveling Nanotubes: Field Emission from an Atomic Wire

Field emission of electrons from individually mounted carbon nanotubes has been found to be dramatically enhanced when the nanotube tips are opened by laser evaporation or oxidative etching, in a process that resembles unraveling the sleeve of a sweater.

X-ray powder diffraction from carbon nanotubes and nanoparticles.

Detailed x-ray powder-diffraction measurements on a sample consisting of carbon nanotubes and nanoparticles demonstrate the existence of short-range interlayer stacking correlations, and calculations show that such correlations should not be observable in idealized models of nanot tubes.