Chemical reaction of polar phthalocyanines on silver: Chloroaluminum phthalocyanine and fluoroaluminum phthalocyanine

Małgorzata Polek, Florian Latteyer, Tamara V. Basova, Fotini Petraki, Umut Aygül, Johannes Uihlein, Peter Nagel, Michael Merz, Stefan Schuppler, Thomas Chassé, Heiko Peisert

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)24715-24723
Number of pages9
JournalJournal of Physical Chemistry C
Volume120
Issue number43
DOIs
Publication statusPublished - 10 Oct 2016

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