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À propos de : Ordered Adlayers of Organic Molecules on Sulfur-ModifiedAu(111): In Situ Scanning Tunneling Microscopy Study        

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  • Ordered Adlayers of Organic Molecules on Sulfur-ModifiedAu(111): In Situ Scanning Tunneling Microscopy Study
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  • In situ scanning tunneling microscopy (STM) was employed to study the structure of adlayers of crystalviolet (CV) and water-soluble porphyrin formed on a sulfur-modified Au(111) electrode in perchloric acidsolution. It was confirmed that a well-defined sulfur adlayer with (√3 × √3)R30° structure can be preparedon Au(111) under potential control. Highly ordered adlayers of the molecules were found to form on thesulfur-modified Au(111) surface. In situ STM revealed the characteristic shape, packing arrangement, andeven internal structure of each molecule. It is demonstrated that the sulfur-modified Au(111) electrodecan be used as a substrate suitable for the investigation of the adsorption of organic molecules in solution.
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