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Ordered phthalocyanine superstructures on Ag(110)
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
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2008 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 128, no 6, 064702- p.Article in journal (Refereed) Published
Abstract [en]

Organic-metal interfaces, in particular, self-assembling systems, are interesting in the field of molecular electronics. In this study, we have investigated the formation of the Ag(110)-iron phthalocyanine (FePc) interface in a coverage range of less than 1 and up to 2 ML using synchrotron based photoelectron spectroscopy and low energy electron diffraction. As-deposited FePc forms a densely packed first layer exhibiting a 3x2/c(6x2) symmetry. Upon thermal treatment the order at the interface is modified depending on the initial FePc coverage, resulting in less densely packed but still ordered superstructures. The first monolayer is relatively strongly bound to the substrate, leading to the formation of an interface state just below the Fermi level. The highest occupied molecular orbital of FePc in the second layer is found at 1 eV higher binding energy compared to the interface state.

Place, publisher, year, edition, pages
2008. Vol. 128, no 6, 064702- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-47043DOI: 10.1063/1.2827864ISI: 000253238200044PubMedID: 18282062Scopus ID: 2-s2.0-39349113352OAI: oai:DiVA.org:kth-47043DiVA: diva2:454657
Note
QC 20111108Available from: 2011-11-08 Created: 2011-11-07 Last updated: 2017-12-08Bibliographically approved

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Palmgren, PålNlebedim, Cajetan IkennaGöthelid, Mats
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