AVS 49th International Symposium
    Organic Films and Devices Wednesday Sessions
       Session OF+EL+SS+SC-WeM

Paper OF+EL+SS+SC-WeM7
Self-assembly of Molecular 1D wires on Cu(110)

Wednesday, November 6, 2002, 10:20 am, Room C-102

Session: Metal-Organic Interfaces
Presenter: Y. Naitoh, University of Aarhus, Denmark
Authors: Y. Naitoh, University of Aarhus, Denmark
F. Rosei, University of Aarhus, Denmark
P. Thostrup, University of Aarhus, Denmark
M. Schunack, University of Aarhus, Denmark
F. Besenbacher, University of Aarhus, Denmark
Correspondent: Click to Email
The adsorption of a large organic C@sub 90@H@sub 98@ molecule, known as the Lander molecule, is studied by Scanning Tunneling Microscopy (STM) on a Cu(110) surface.@footnote 1@ By exposing the surface to low doses of oxygen at elevated temperatures, we form a nanopattern of alternating bare Cu(110) regions and (2x1)-O reconstructed regions aligned parallel to the [001] direction. The oxygen-induced reconstruction reveals a long-range ordering of Cu-O rows 20-50 Å wide. When deposited on this template, Lander molecules adsorb preferentially on bare Cu regions. By tuning the oxygen dosing, thereby adjusting the lateral periodicity of the template, and by varying molecular coverage in a controlled manner we can form long 1D rows of molecular wires. This type of assembly opens new possibilities for ordering organic molecules on surfaces. @FootnoteText@ @footnote 1@ F. Rosei et al., Science 296, 328 (2002).