Self-assembled giant carbon nanotube construction using Langmuir-Blodgett films and CVD method

We used Langmuir-Blodgett films including iron atoms as a catalytic metal material for carbon nanotube (CNT) growth through chemical vapor deposition. We have found a new form of nanotube growth, which we call a giant carbon nanotube construction (GNC). The GNC seems to be self-assembled, almost as if a sock were knitted by carbon nanotubes. The GNC has thin (5 mum in diameter) and long (100 mum in length) structure and is quite different from CNT bundles. The growth mechanism of the GNC was suggested in the SEM images and Raman spectral data. The GNC might have application to CNT sensors, synthetic fiber, and so on