Carbon nanotube graphoepitaxy: highly oriented growth by faceted nanosteps.
Single-wall carbon nanotubes grow along self-assembled nanosteps of annealed miscut C-plane sapphire. Depending on the miscut orientation and annealing conditions, graphoepitaxy leads to the formation of either unprecedentedly straight and parallel nanotubes, with angular deviations as small as +/-0.5 degrees , or to wavy nanotubes loosely conformal to sawtooth-shaped faceted nanosteps.
Ismach
Ariel
A
Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel.
Kantorovich
David
D
Joselevich
Ernesto
E
D003460:Crystallization; D018625:Microscopy, Atomic Force; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*
D037742:Nanotubes, Carbon