Nucleation and growth of Cu clusters on highly oriented pyrolytic graphite observed with an in situ electrochemical scanning tunneling microscope

Takashi Tanii, K. Hara, K. Ishibashi, K. Ohta, I. Ohdomari

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    5 Citations (Scopus)

    Abstract

    Using an electrochemical scanning tunneling microscope (ECSTM), we have observed nucleation and growth of Cu clusters on highly oriented pyrolytic graphite (HOPG). In situ observations were made at different sample potentials. Firstly, preliminary images were obtained at the sample potential where Cu did not precipitate. Then, we obtained images at the sample potential where Cu deposition was observed. We found superperiodic structures on the top graphite layer and Cu clusters of about 2 nm in diameter formed along the step-edge with a constant interval. The interval between clusters had a same periodicity as that of the superperiodic structure. Namely, the superperiodic structure on the top graphite layer induced nucleation of Cu along the step-edge.

    Original languageEnglish
    Pages (from-to)662-665
    Number of pages4
    JournalApplied Surface Science
    Volume162
    DOIs
    Publication statusPublished - 2000 Aug 1

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    Graphite
    pyrolytic graphite
    Microscopes
    Nucleation
    microscopes
    nucleation
    Scanning
    scanning
    graphite
    intervals
    Precipitates
    periodic variations
    precipitates

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Surfaces, Coatings and Films
    • Condensed Matter Physics

    Cite this

    Nucleation and growth of Cu clusters on highly oriented pyrolytic graphite observed with an in situ electrochemical scanning tunneling microscope. / Tanii, Takashi; Hara, K.; Ishibashi, K.; Ohta, K.; Ohdomari, I.

    In: Applied Surface Science, Vol. 162, 01.08.2000, p. 662-665.

    Research output: Contribution to journalArticle

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    AU - Tanii, Takashi

    AU - Hara, K.

    AU - Ishibashi, K.

    AU - Ohta, K.

    AU - Ohdomari, I.

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