Production of aligned carbon nanotubes by the CVD injection method

High purity, aligned multi-walled carbon nanotubes films were grown on quartz substrates by injecting a solution of ferrocene in toluene. The injection CVD method allows excellent control of the catalyst to carbon ratio. The nanotube diameter, length and alignment were controlled by varying the reaction parameters. In particular, the effects of temperature, catalyst concentration and reaction time have been investigated. (C) 2002 Elsevier Science B.V. All rights reserved.