Abstract
Single-wall carbon nanotubes (SWNTs) were produced by an ablation method using a XeC1 excimer laser. It was irradiated onto a graphite-Co/Ni target under the atmosphere (0.1 MPa) of Ar gas with the flow rate of 12 ml/min at the temperature of a room, 1273 K, 1373 K, and 1473K. At the room temperature, the fiber-like deposition was observed on the target surface after the laser ablation. On the other hand, SWNTs were found in the carbonaceous soot produced by the laser ablation under the conditions of high temperature. The diameter distribution and the length of them were estimated to be between 1.2 and 1.7 nm, and 2μm or above, respectively, by Raman spectroscopy and the scanning and transmission electron microscopy.
