We have produced single-wall carbon nanotubes (SWNTs) by Nd:Yag laser vaporizationof porous cobalt-nickel/graphite targets for the first time without applying external heat to the target. Both continuous wave (c.w.) and pulsed laser-techniques were explored. In the pulsed experiments, the energy density per pulse was varied between 0.12 and 0.62 J/cm~2 and pulse rates ranged from 24 kHz down to 3 kHz corresponding to average powers of 25.5 to16 W. Continuous wave experiments were conducted at average powers which corresponded to those measured for each fo the pulsed runs. An additional run at 30W was also performed. A rigorous method developed for the anlaysis of transmission electron microscopy (TEM) images was used to estimate SWNT content in the laser-generated carbon samples. The pulsed and continuous wave processes both prodcued a linear increase in SWNT content with increasing average power. These resutls are not intuitive for the pulsed laser-production since a higher average power corresponds to a lower peak pulse power. In fact, a pulsed run with the maximum pulse energy of 0.62 J/cm~2 (3 kHz, 16W), produced no detectable SWNTs. A maximum SWNT content of 78
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