14 October 2004 Electronic structure and ordering of aromatic molecules on Au(111)
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Aromatic molecules, such as pentacene, sexiphenyl and naphtho[2,3-a]pyrene, adsorbed on Au(111) surfaces are studied with x-ray photoemission spectroscopy (XPS), ultraviolet photoemission spectroscopy (UPS), temperature programmed desorption (TPD) and scanning tunneling microscopy (STM). All the molecules developed a strong interface dipole indicative of charge transfer from the molecule to the substrate. At monolayer coverages or less a variety of two-dimensional ordered structures were discovered. Naphtho[2,3-a]pyrene, a 2D chrial adsorbate, forms chiral domains rater than a 2D racemic unit cell.
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C. Brian France, C. Brian France, Andy Frame, Andy Frame, Bruce A. Parkinson, Bruce A. Parkinson, } "Electronic structure and ordering of aromatic molecules on Au(111)", Proc. SPIE 5513, Physical Chemistry of Interfaces and Nanomaterials III, (14 October 2004); doi: 10.1117/12.556054; https://doi.org/10.1117/12.556054


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