Study of initial stage of molecular adsorption on Si(100) by scanning tunneling microscopy

Ken Nakajima, Tomihiro Hashizume, Seiji Heike, Satoshi Watanabe, Munehisa Mitsuya, Takayuki Ikehara, Yasuo Wada, Toshio Nishi

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    4 Citations (Scopus)

    Abstract

    We have investigated the initial stage of adsorption of a conjugated aromatic compound, 1,4-bis[β-pyridyl-(2)-vinyl]benzene (P2VB), on the clean Si(100)-2 × 1 surface. Using scanning tunneling microscopy (STM), we observed four different adsorption directions. An individual molecule appears as two or three bright spots, the brightness and distance between bright spots varying for different adsorption directions. We conclude that STM revealed the electronic states of the Si(100) dimers modulated by the adsorbed molecules, rather than the molecules themselves. Initial stage of adsorption of this molecule is explained by considering the molecular size and shape and strong interaction between the molecule and the Si dimers.

    Original languageEnglish
    Pages (from-to)L1360-L1363
    JournalJapanese Journal of Applied Physics, Part 2: Letters
    Volume35
    Issue number10 SUPPL. B
    DOIs
    Publication statusPublished - 1996 Oct 15

    Keywords

    • Conjugated aromatic compound
    • Initial stage of adsorption
    • Scanning tunneling microscopy
    • Si(100)

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)

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  • Cite this

    Nakajima, K., Hashizume, T., Heike, S., Watanabe, S., Mitsuya, M., Ikehara, T., Wada, Y., & Nishi, T. (1996). Study of initial stage of molecular adsorption on Si(100) by scanning tunneling microscopy. Japanese Journal of Applied Physics, Part 2: Letters, 35(10 SUPPL. B), L1360-L1363. https://doi.org/10.1143/jjap.35.l1360