Structure and Characterization of Vertically Aligned Single-Walled Carbon Nanotube Bundles

Arrays of vertically aligned single-walled carbon nanotube bundles, SWCNTs, have been synthesized by simple alcohol catalytic chemical vapor deposition process, carried out at 800∘C. The formed SWCNTs are organized in small groups perpendicularly aligned and attached to the substrate. These small bundles show a constant diameter ofca.30 nm and are formed by the adhesion of no more than twenty individual SWCNTs perfectly aligned along their length.