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FORMATION OF ORDERED MOLECULAR OVERLAYERS BY A TEMPERATURE-INDUCED SURFACE REACTION: HEXABUTYLOXYTRIPHENYLENE ONCu(111)

Author

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  • H. WEGNER

    (Ruhr-Universität Bochum, Physikalische Chemie I, 44780 Bochum, Germany)

  • K. WEISS

    (Ruhr-Universität Bochum, Physikalische Chemie I, 44780 Bochum, Germany)

  • CH. WÖLL

    (Ruhr-Universität Bochum, Physikalische Chemie I, 44780 Bochum, Germany)

Abstract

Molecular monolayers obtained by the adsorption of hexabutyloxytriphenylene (HBT) onCu(111)were investigated by scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS) and thermal desorption spectroscopy (TDS). Adsorption at room temperature results in the formation of a disordered layer of physisorbed molecules. Annealing at temperatures of 600 K is found to induce a chemical reaction of the molecule with the substrate, leading to a desorption of the butyl fragments. This chemical reaction is accompanied by the formation of a highly ordered, well-defined oxytriphenylene layer which is stable for temperatures of up to 600 K.

Suggested Citation

  • H. Wegner & K. Weiss & Ch. Wöll, 1999. "FORMATION OF ORDERED MOLECULAR OVERLAYERS BY A TEMPERATURE-INDUCED SURFACE REACTION: HEXABUTYLOXYTRIPHENYLENE ONCu(111)," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 6(02), pages 183-192.
    • Handle: RePEc:wsi:srlxxx:v:06:y:1999:i:02:n:s0218625x99000214
    DOI: 10.1142/S0218625X99000214
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