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Conical beams from open nanotubes

Author

Listed:
  • Yahachi Saito

    (Mie University)

  • Koji Hamaguchi

    (Mie University)

  • Koichi Hata

    (Mie University)

  • Kunio Uchida

    (National Institute of Materials and Chemical Research)

  • Yoshiharu Tasaka

    (National Institute of Materials and Chemical Research)

  • Fumikazu Ikazaki

    (National Institute of Materials and Chemical Research)

  • Motoo Yumura

    (National Institute of Materials and Chemical Research)

  • Atsuo Kasuya

    (Institute for Materials Research, Tohoku University)

  • Yuichiro Nishina

    (Institute for Materials Research, Tohoku University)

Abstract

Electron guns are indispensable devices that are widely used in household and industrial appliances. Field electron-emitting sources (which emit electrons by tunnelling effects in electric fields), with their small size, small energy spread, high current density and no requirement for heat, have distinct advantages over thermionic emitters. We have made a field electron emitter from hollow, open-ended carbon nanotubes.

Suggested Citation

  • Yahachi Saito & Koji Hamaguchi & Koichi Hata & Kunio Uchida & Yoshiharu Tasaka & Fumikazu Ikazaki & Motoo Yumura & Atsuo Kasuya & Yuichiro Nishina, 1997. "Conical beams from open nanotubes," Nature, Nature, vol. 389(6651), pages 554-555, October.
    • Handle: RePEc:nat:nature:v:389:y:1997:i:6651:d:10.1038_39221
    DOI: 10.1038/39221
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