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Carbon nanotubes as cold cathodes

Author

Listed:
  • Kenneth B. K. Teo

    (University of Cambridge)

  • Eric Minoux

    (Thales Research and Technology, RD 128)

  • Ludovic Hudanski

    (Thales Electron Devices, BP 23)

  • Franck Peauger

    (Thales Electron Devices, BP 23)

  • Jean-Philippe Schnell

    (Thales Research and Technology, RD 128)

  • Laurent Gangloff

    (University of Cambridge)

  • Pierre Legagneux

    (Thales Research and Technology, RD 128)

  • Dominique Dieumegard

    (Thales Electron Devices, BP 23)

  • Gehan A. J. Amaratunga

    (University of Cambridge)

  • William I. Milne

    (University of Cambridge)

Abstract

To communicate, spacecraft and satellites rely on microwave devices, which at present are based on relatively inefficient thermionic electron sources that require heating and cannot be switched on instantaneously. Here we describe a microwave diode that uses a cold-cathode electron source consisting of carbon nanotubes1 and that operates at high frequency and at high current densities. Because it weighs little, responds instantaneously and has no need of heating, this miniaturized electron source should prove valuable for microwave devices used in telecommunications.

Suggested Citation

  • Kenneth B. K. Teo & Eric Minoux & Ludovic Hudanski & Franck Peauger & Jean-Philippe Schnell & Laurent Gangloff & Pierre Legagneux & Dominique Dieumegard & Gehan A. J. Amaratunga & William I. Milne, 2005. "Carbon nanotubes as cold cathodes," Nature, Nature, vol. 437(7061), pages 968-968, October.
    • Handle: RePEc:nat:nature:v:437:y:2005:i:7061:d:10.1038_437968a
    DOI: 10.1038/437968a
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    Cited by:

    1. Erick Josephat Kalori, 2023. "Natural Radioactivity and Associated Radiological Hazard Indices in Carbonatite Rocks from Oldoinyo Lengai, Tanzania," International Journal of Research and Innovation in Applied Science, International Journal of Research and Innovation in Applied Science (IJRIAS), vol. 8(11), pages 01-23, November.

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