Abstract: The structure of the self-assembled monolayers of decanethiol on a Au(111) surface prepared in 1 mM ethanol solutions at -20, 5, 25, 60, and 78 C was examined by scanning tunneling microscopy. The higher the temperature of the solution, the larger the size of the well-ordered domain with the (3�3)R30 structure. The number of the vacancy islands (VIs) of the gold surface decreased while the total area of the VIs was constant, indicating that the VIs underwent ripening.
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