Optical Emission Spectroscopy of Arc Flame Plasma for Generation of Carbon Nanotubes
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概要
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Spatial distributions of plasma temperature and densities of carbon species in DC arc discharge for generating carbon nanotubes have been investigated by measuring the spatial distributions of optical emission spectra as a function of pressure, current density for arc discharge, and cooling rate of the cathode.It is found that the nanotube yield is high when the temperature at the axial center of the cathode is higher than 6000K so that the dominant species is in the arc flame carbon monomer.The potential drop at the cathode sheath, calculated from the model proposed by Rethfeld et al.[J.Phys.D29(1996)121], is high for the high nanotube yield in comparison to that under the low yield conditions.
- 社団法人応用物理学会の論文
- 2000-08-15
著者
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秋田 成司
阪府大工
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Ashihara Hiroshi
Department of Biology, Faculty of Science, Ochanomizu University
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Ashihara Hiroshi
Department Of Advanced Biosciences Graduate School Of Humanities And Sciences Ochanomizu University
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Ashihara Hiroshi
Department Of Physics And Electronics Osaka Prefecture Univeersity:(present Address)device Developme
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AKITA Seiji
Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University
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NAKAYAMA Yoshikazu
Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University
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Nakayama Yoshikazu
Department Of Electrical Engineering College Of Engineering University Of Osaka
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Akita Seiji
Department Of Physics And Electronics College Of Engineering University Of Osaka Prefecture
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Nakayama Yoshikazu
Department Of Physics And Electronics Osaka Prefecture Univeersity
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Akita Shirabe
Central Research Institute Of Electric Power Industry
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