title: Study on the controllable scale-up growth of vertically-aligned carbon nanotube arrays.
abstract: Vertically aligned carbon nanotubes (VA-CNTs) with high purity have been grown on quartz substrate via the gas phase catalytic chemical vapour deposition (CVD) by using ferrocene as the catalyst source and camphor as the carbon source. The effects of catalyst concentration, flow rate and water assistance on the morphology and structure of VA-CNTs are investigated by SEM, TEM, Raman and XPS characterizations. Under the optimized CVD conditions with modest ferrocene concentration and flow rate, dense and well VA-CNT arrays have been obtained. The water concentration should be controlled to improve CNTs alignment and impurity without damaging the walls of CNTs.
authors: School of Chemical Engineering, University of Queensland, QL 4072, Australia.
authors: Lei
authors: L
authors: Ge
authors: Jiuling
authors: J
authors: Chen
authors: Jun
authors: J
authors: Chen
authors: Zhonghua
authors: Z
authors: Zhu
authors: Victor
authors: V
authors: Rudolph