電気学会論文誌A(基礎・材料・共通部門誌)
Online ISSN : 1347-5533
Print ISSN : 0385-4205
Simple Preparation of Carbon-Nanotubed Field Emitting Surface Using a Welding Arc Torch
Hirofumi TakikawaYoshitaka TaoYoshihiko HibiRyuichi MiyanoTateki SakakibaraYoshinori AndoShigeo ItoKenji Nawamaki
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2001 年 121 巻 5 号 p. 495-496

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Graphite (C) and catalyst (Ni/Y)-contained graphite (C-Ni/Y) substrates were processed by a welding torch arc in both DC and AC mode under open air. Multiwall carbon nanotubes were obtained at the arc spot surface on C-Ni/Y substrate for DC and AC arc, and on C substrate for AC arc. The field emission abilities of these arc spot surface were tested in a diode system. The emission current increased in the order of the surfaces of C-Ni/Y substrate for AC arc, of C substrate for DC arc, and of C-Ni/Y substrate for DC arc. This order was the same as the increase of nanotube density and the decrease of coexisting nanoparticle density.

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© The Institute of Electrical Engineers of Japan
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