High-Density Growth of Vertically Aligned Carbon Nanotubes with High Linearity by Catalyst Preheating in Acetylene Atmosphere
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概要
- 論文の詳細を見る
Vertically aligned carbon nanotubes (CNTs) with a high number density of $2\times 10^{11}$ cm-2 were successfully synthesized by catalyst-assisted thermal chemical vapor deposition using catalyst preheated in C2H2 atmosphere. The synthesized CNTs were found to possess high linearity and good crystallinity. The catalyst nanoparticles with a high number density and a narrow size distribution were efficiently formed by preheating in C2H2 as compared with those treated in H2 and He. The obtained results can be attributed to the decrease in the migration length of Fe catalyst due to the incorporation of carbon during the preheating process.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-04-25
著者
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OURA Kenjiro
Research Center for Ultrahigh Voltage Electron Microscopy, Osaka University
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Yoshihara Kumiko
Division Of Electrical Electronic And Information Engineering Graduate School Of Engineering Osaka U
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Lee Jung-goo
Research Center For Ultra-high Voltage Electron Microscopy Osaka University
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Mori Hirotaro
Research Center For Ultra-high Voltage Electron Microscopy Osaka University
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Honda Shin-ichi
Division Of Electrical Electronic And Information Engineering Graduate School Of Engineering Osaka U
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Katayama Mitsuhiro
Division Of Electrical Electronic And Information Engineering Graduate School Of Engineering Osaka U
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Mori Hirotaro
Research Center for Ultrahigh Voltage Electron Microscopy, Osaka University, 7-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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Oura Kenjiro
Research Center for Ultra High Voltage Electron Microscopy, Osaka University, 7-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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Yoshihara Kumiko
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Katayama Mitsuhiro
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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