Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 38, Pages 18640-18648Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp2050838
Keywords
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Funding
- Ministerio de Ciencia y Tecnologia (Spain) [FIS2009-08355, FIS2009-12721-C04-01, CSD2007-00050]
- Generalitat de Catalunya [SGR 00909, 2009 SGR 186]
- Deutsche Forschungsgemeinschaft (Germany) [FR2726/1]
- BESSY IA-SFS programme [BESSY-ID.08.2.80003, RII 3CT-2004-506008]
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We report a combined experimental and theoretical study of the modulation of surface charge transfer on the tetrathiafulvalene (TTF)/Au(111) interface as a function of coverage in the submonolayer regime by combining low-temperature scanning tunneling microscopy, high-resolution photoemission spectroscopy using synchrotron radiation, and density functional theory (DFT) calculations. The modulation is induced by the competition between long-range repulsive Coulombic interactions and short-range attractive hydrogen-bonding interactions. The system shows the characteristic pattern evolution, from monomeric stripes at low coverages to two-dimensional islands, with the formation of labyrinths in the crossover.
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