Chemical Reaction of Polar Phthalocyanines on Silver: Chloroaluminum Phthalocyanine and Fluoroaluminum Phthalocyanine
| Autor: | Peter Nagel, Florian Latteyer, Małgorzata Polek, F. Petraki, Stefan Schuppler, Michael Merz, Thomas Chassé, Heiko Peisert, Umut Aygül, Tamara V. Basova, Johannes Uihlein |
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| Rok vydání: | 2016 |
| Předmět: |
X-ray absorption spectroscopy
Materials science Absorption spectroscopy Photoemission spectroscopy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound General Energy chemistry X-ray photoelectron spectroscopy Monolayer Phthalocyanine Crystallite Physical and Theoretical Chemistry 0210 nano-technology FOIL method |
| Zdroj: | The Journal of Physical Chemistry C. 120:24715-24723 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.6b07052 |
| Popis: | Interface properties of chloroaluminum(III) phthalocyanine (AlClPc) and fluoroaluminum(III) phthalocyanine (AlFPc) on different silver surfaces have been studied using X-ray and ultraviolet photoemission spectroscopy (XPS and UPS) and X-ray absorption spectroscopy (XAS). Both polycrystalline silver foil and silver single crystals were used as a substrate. In all cases a chemical reaction was detected by XPS, visible as additional species in chlorine or fluorine core level spectra. However, UPS spectra show additional intensity in vicinity of the Fermi edge only for monolayer coverages of AlClPc and AlFPc on silver foil. Possible scenarios for the different interaction on polycrystalline and single-crystalline silver surfaces are discussed. The roughness of the substrate may influence the strength of the interaction significantly. |
| Databáze: | OpenAIRE |
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