CARBON NANOTUBE AGGREGATE AND METHOD FOR PRODUCING SAME

Title:

CARBON NANOTUBE AGGREGATE AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2006/120780

Kind Code:

A1

Abstract:

[PROBLEMS] To provide a carbon nanotube of novel structure. [MEANS FOR SOLVING PROBLEMS] A buffer layer composed of TiN is formed on an Si substrate. Co nano particles having a particle size of 5 nm or less are deposited on the buffer layer by generating a pulse arc about 3-150 times by using a pulse arc plasma under a vacuum of 1×10^-5Torr. When a carbon nanotube is grown subsequently, a pyramidal punctate aggregate of carbon nanotubes having a mean outside diameter of 4 nm and a mean inside diameter of 3 nm is formed. The aggregate exhibits high field electron emission efficiency.

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Inventors:

Hori, Masaru (6-176, Fujitsuka Nisshin-shi Aichi, 17, 47001, JP)
Hiramatsu, Mineo (97-1-905, Shiratsuchi Haruki, Togo-cho, Aichi-gu, Aichi 62, 47001, JP)
Kano, Hiroyuki c/o NU Eco Engineering Co. Ltd. (1237-87, Aza Umazutsumi, Oaza Kurozasa, Miyoshi-cho, Nishikamo-gu, Aichi 01, 47002, JP)

Application Number:

PCT/JP2006/300981

Publication Date:

November 16, 2006

Filing Date:

January 23, 2006

Export Citation:

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Assignee:

NU ECO ENGINEERING CO., LTD. (1237-87, Aza Umazutsumi Oaza Kurozasa, Miyoshi-ch, Nishikamo-gun Aichi 01, 47002, JP)
Hori, Masaru (6-176, Fujitsuka Nisshin-shi Aichi, 17, 47001, JP)
Hiramatsu, Mineo (97-1-905, Shiratsuchi Haruki, Togo-cho, Aichi-gu, Aichi 62, 47001, JP)
Kano, Hiroyuki c/o NU Eco Engineering Co. Ltd. (1237-87, Aza Umazutsumi, Oaza Kurozasa, Miyoshi-cho, Nishikamo-gu, Aichi 01, 47002, JP)

International Classes:

C01B31/02; B82B1/00; B82B3/00; H01J1/304; H01J9/02

Attorney, Agent or Firm:

Fujitani, Osamu (Marunouchi KS Bldg. 16F, 18-25 Marunouchi 2-chome, Naka-ku, Nagoya-sh, Aichi 02, 46000, JP)

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