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A single-electron transistor made from a cadmium selenide nanocrystal

Author

Listed:
  • David L. Klein

    (University of California
    University of California)

  • Richard Roth

    (University of California
    Molecular Design Institute, Lawrence Berkeley National Laboratory)

  • Andrew K. L. Lim

    (University of California
    Molecular Design Institute, Lawrence Berkeley National Laboratory)

  • A. Paul Alivisatos

    (University of California
    Molecular Design Institute, Lawrence Berkeley National Laboratory)

  • Paul L. McEuen

    (University of California
    Molecular Design Institute, Lawrence Berkeley National Laboratory)

Abstract

The techniques of colloidal chemistry permit the routine creation of semiconductor nanocrystals1,2 whose dimensions are much smaller than those that can be realized using lithographic techniques3,4,5,6. The sizes of such nanocrystals can be varied systematically to study quantum size effects or to make novel electronic or optical materials with tailored properties7,8,9. Preliminary studies of both the electrical10,11,12,13 and optical properties14,15,16 of individual nanocrystals have been performed recently. These studies show clearly that a single excess charge on a nanocrystal can markedly influence its properties. Here we present measurements of electrical transport in a single-electron transistor made from a colloidal nanocrystal of cadmium selenide. This device structure enables the number of charge carriers on the nanocrystal to be tuned directly, and so permits the measurement of the energy required for adding successive charge carriers. Such measurements are invaluable in understanding the energy-level spectra of small electronic systems, as has been shown by similar studies of lithographically patterned quantum dots3,4,5,6 and small metallic grains17.

Suggested Citation

  • David L. Klein & Richard Roth & Andrew K. L. Lim & A. Paul Alivisatos & Paul L. McEuen, 1997. "A single-electron transistor made from a cadmium selenide nanocrystal," Nature, Nature, vol. 389(6652), pages 699-701, October.
    • Handle: RePEc:nat:nature:v:389:y:1997:i:6652:d:10.1038_39535
    DOI: 10.1038/39535
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    Cited by:

    1. Kenji Shibata & Masaki Yoshida & Kazuhiko Hirakawa & Tomohiro Otsuka & Satria Zulkarnaen Bisri & Yoshihiro Iwasa, 2023. "Single PbS colloidal quantum dot transistors," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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