Growth of Carbon Nanotubes on Quartz Plates by Chemical Vapor Deposition Using (Ni, Fe)- Phthalocyanines

Carbon multiwall nanotubes were formed on quartz plates by vacuum chemical vapor deposition at 700°C using (Ni, Fe)-phthalocyanines (Pcs) as source materials. From FePc, two types of nanotubes were obtained. The first were the usual tubes whose tips were coiled, as obtained from NiPc, and the second were straight bundles of tubes of equal length shaped like winter mushrooms. Most of the mushroom shaped tubes strongly adhered to the substrate in contrast to the usual tubes. This adhesion was inferred to be induced by the contents (Fe metal) inside the base of the tube.