NITROGEN-CONTAINING CARBON NANOTUBE GROWTH FROM NI PHTHALOCYANINE BY CHEMICAL-VAPOR-DEPOSITION

Carbon tubes were obtained by chemical vapor deposition at 700 and 800 degrees C using Ni phthalocyanine as a starting material. The tubes g rew perpendicularly on a quartz glass substrate, and then bent and oft en coiled as their diameter decreased. Transmission electron microscop y images revealed that the outer and inner diameters of the thin part of the tube were 20-40 nm and about 10 nm, respectively. X-ray photoel ectron spectra indicated that the carbon tubes contained nitrogen. Amo rphous carbon films were obtained at 900 and 1000 degrees C. (C) 1997 Elsevier Science Ltd. All rights reserved.