Adsorption and thermal treatments of 1-dodecene on Si(100) investigated by STM

H. W. Liu, Y. Fujikawa, J. T. Sadowski, Q. K. Xue, T. Sakurai

    Research output: Contribution to journalArticlepeer-review


    We investigate the atomic behaviour of long-chain 1-dodecene adsorbed on Si(100) using a scanning tunnelling microscope with an exposure of 30 to 2.4 Langmuirs. Unlike previous reports on short-chain molecules, remarkable self-ordered assembly of molecules is not observed at room temperature, which is possibly attributed to the asymmetric molecular structure with long chains of 1-dodecene. After annealing at 500-580 °C, ordered patterns form with a c(4 × 4) structure, accompanied with thermal decomposition of molecules.

    Original languageEnglish
    Pages (from-to)89-93
    Number of pages5
    JournalSurface Science
    Publication statusPublished - 2015


    • 1-Dodecene
    • Scanning tunneling microscopy

    ASJC Scopus subject areas

    • Surfaces and Interfaces
    • Condensed Matter Physics
    • Materials Chemistry
    • Surfaces, Coatings and Films


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