Discussion Topic Posted for the NANOTUBE-99 Workshop:

New insight on the effect of the growth temperature on the Diameter Distribution and Chirality of SWNT was recently reported (Effect of Growth Temperature on the Diameter Distribution and Chirality of Single-Wall Carbon Nanotubes, S. Bandow, S. Asaka, Y. Saito, A. Rao, L. Grigorian, E. Richter, P. Eklund, Phys. Rev. Lett., (1998) Vol 80, No. 17, 3779-3782). Dispersed amorphous carbon in has long been used by industry to attenuate microwaves for the purpose of shielding adjacent communications antenna fro m unwanted crosstalk. It is reasonable to expect that carbon nanotubes would tend to act as little microwave antennas as well. The difference in their microwave emissivity and absorbtion could be strongly affected by their orientation in the field, howeve r. What are the ways you can think of to use this difference in microwave property to impart a directed anneal from the nucleating carbon and therefore shift the yield of product in any of the present nanotube synthesis?

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