Advanced Materials

Nanometer-size Cu clusters formed by reversible deintercalation on layered chalcogenides with scanning probe techniques

Authors

  • Dr. Wolfram Jaegermann,

    1. Photochemical Conversion Project, Kanagawa Science and Technology, 1583 Iliyama, Atsugi, Kanagawa 243 02 (Japan)
    2. Hahn-Meitner-Institut, Abteilung Grenzflächen Glienicker Strasse 100, D-14109 Berlin (Germany)
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  • Dr. Lei Jiang,

    1. Photochemical Conversion Project, Kanagawa Science and Technology, 1583 Iliyama, Atsugi, Kanagawa 243 02 (Japan)
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  • Dr. Tomakazu Iyoda,

    1. Photochemical Conversion Project, Kanagawa Science and Technology, 1583 Iliyama, Atsugi, Kanagawa 243 02 (Japan)
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  • Dr. Yvonnne Tomm,

    1. Hahn-Meitner-Institut, Abteilung Grenzflächen Glienicker Strasse 100, D-14109 Berlin (Germany)
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  • Christian Pettenkofer,

    1. Hahn-Meitner-Institut, Abteilung Grenzflächen Glienicker Strasse 100, D-14109 Berlin (Germany)
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  • Dr. Kazuhito Hashimoto,

    1. Department of Applied Chemistry, The University of Tokyo Hongo, Bunkyn-ku, Tokyo 113 (Japan)
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  • Akira Fujishima

    1. Photochemical Conversion Project, Kanagawa Science and Technology, 1583 Iliyama, Atsugi, Kanagawa 243 02 (Japan)
    2. Department of Applied Chemistry, The University of Tokyo Hongo, Bunkyn-ku, Tokyo 113 (Japan)
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  • W.J. acknowledges the support of the Japan Society for the Promotion of Science (JSPS) for his visit to Japan, where the AFM measurements were performed.

Abstract

Modification of surfaces by scanning probe techniques is the key to future nanotechnologies. In the novel approach described here, the reversible deintercalation of Cu from (0001) surfaces of 1T TaSe2 by means of the atomic force microscope can produce large Cu clusters, such as that in the Figure, that can be reintercalated. A mechanism is proposed for the intercalation and tip-induced deintercalation.

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