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Título: | Densely Packed Perylene Layers on the Rutile TiO2(110)-(1 × 1) Surface |
Autor: | Otero, Gonzalo CSIC ORCID; Martínez, José I. CSIC ORCID ; Lovat, Giacomo; Lanzilotto, Valeria; Méndez, Javier CSIC ORCID; López, María Francisca CSIC ORCID ; Floreano, Luca; Martín-Gago, José A. CSIC ORCID | Fecha de publicación: | 20-mar-2015 | Editor: | American Chemical Society | Citación: | Journal of Physical Chemistry C 119(14): 7809-7816 (2015) | Resumen: | We have studied the interaction of perylene, a prototypical organic molecule, on the TiO2(110)-(1 × 1) surface at different surface coverages by an adequate combination of ultrahigh vacuum STM and UPS techniques, together with accurate “many-body” corrected ab initio calculations. We show that the molecular coupling and adsorption configuration strongly depend on the coverage. At the submonolayer coverage, the interaction is dominated by the van der Waals substrate attraction, which keeps the molecules in the troughs between adjacent oxygen rows. At this low-coverage regime no additional interaction is detected among the molecules, which rather behave like a 2D gas. When the coverage approaches the saturation of the first layer, a side-to-side molecular attraction sets in, which is shown to be mediated by a lateral intermolecular hybridization. | Versión del editor: | http://dx.doi.org/10.1021/acs.jpcc.5b00851 | URI: | http://hdl.handle.net/10261/168009 | DOI: | 10.1021/acs.jpcc.5b00851 | ISSN: | 1932-7447 | E-ISSN: | 1932-7455 |
Aparece en las colecciones: | (ICMM) Artículos |
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Densely-packed-perylene-2015.pdf | 1,05 MB | Adobe PDF | Visualizar/Abrir |
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