Abstract
Styrene is used as a carbon source in a CVD process to obtain aligned carbon nanotube films. Changing the carrier gas from argon to ammonia introduces nitrogen into the tubes. SEM, TEM and HRTEM show the well‐aligned structures, which appear to exist as macrobundles. EELS analyses have verified the existence of 3.3 wt.% nitrogen in the tube. Irradiation experiments show that this technique can be used to manipulate NCNTs.