Growth of carbon nanotubes on Fe or Ni-coated Si substrate by feeding with carbon from a graphite ablation plume |
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| Authors: | Y Suda K Utaka MA Bratescu Y Sakai J Tsujino K Suzuki |
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| Institution: | (1) Graduate School of Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, 060-8628, Japan;(2) Hokkaido Electric Power Co., Inc., 2-1 Tsuishikari, Ebetsu, 067-0033, Japan;(3) Department of Electrical Engineering, College of Science & Technology, Nihon University, 1-8-14, Surugadai, Kanda, Chiyoda-ku, Tokyo, 101-8308, Japan |
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| Abstract: | By feeding with carbon clusters from the ArF excimer laser ( =193 nm) ablation of graphite target, carbon nanotubes (CNTs) were grown on Fe and Ni films deposited on SiO2/Si substrates, which were set inside a quartz tube with Ar gas pressure of 500 Torr operating at 1100 °C. Optical emission spectroscopic observation of the ablation plume of graphite and Ni/Y catalyst was performed in the Ar gas for a pressure range of 0–600 Torr at room temperature and 1000 °C. The emission band intensity of C3 (Ã1 u) at the distance of 2 mm from the target increased with increasing Ar gas pressure. PACS 79.20.Ds; 81.07.De; 39.30.+w |
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