H. Cui et al., Deposition of aligned bamboo-like carbon nanotubes via microwave plasma enhanced chemical vapor deposition, J APPL PHYS, 88(10), 2000, pp. 6072-6074
Aligned multiwall carbon nanotubes have been grown on silicon substrates by
microwave plasma enhanced chemical vapor deposition using methane/ammonia
mixtures. Scanning electron microscopy shows that the nanotubes are well al
igned with high aspect ratio and growth direction normal to the substrate.
Transmission electron microscopy reveals that the majority phase has a bamb
oo-like structure. Data are also presented showing process variable effects
on the size and microstructure of the aligned nanotubes, giving insight in
to possible nucleation and growth mechanisms for the process. (C) 2000 Amer
ican Institute of Physics. [S0021-8979(00)04923-9].