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

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    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
    Issue number10 SUPPL. B
    Publication statusPublished - 1996 Oct 15


    • 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)


    Dive into the research topics of 'Study of initial stage of molecular adsorption on Si(100) by scanning tunneling microscopy'. Together they form a unique fingerprint.

    Cite this