Relationship between Intensity of Fullerene-Mass Spectrum and Carbon Vibrational Temperature in Microwave-Helium Plasmas
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概要
- 論文の詳細を見る
Soot containing fullerenes, such as C_<60> and C\<70> was synthesized with He plasmas generated in a quartz tube by microwave glow discharge. A reticulated vitreous carbon (RVC) heated by the microwave He plasmas with an electric field of TE_<10> mode was used as the carbon source. Swan bands of C_2 molecules were observed during the synthesis by optical emission spectroscopy (OES) in order to investigate the effect of the vibrational temperature of C_2 molecules on the formation of the fullerenes. The soot deposited on the quartz tube was analyzed by laser desorption time-of-flight mass-spectroscopy (LD-TOP-MS). The intensities of the mass spectra of fullerenes were confirmed to be maximum for the conditions as follows: the absorbed microwave power P_<ab> = 200W and the He gas pressure P = 100 Torr, while the C_2 vibrational temperature was approximately 7000 K.
- 社団法人応用物理学会の論文
- 1999-07-30
著者
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Fujiyama Hiroshi
Department Of Electrical And Electronic Engineering Nagasaki University
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Ueda Kengo
Department Of Electrical Engineering And Computer Science Nagasaki University
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Kuwahara Kiyoshi
Department of Electrical Engineering and Computer Science, Nagasaki University
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Kuwahara Kiyoshi
Department Of Electrical Engineering And Computer Science Nagasaki University
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