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New Quadratic Self-Assembly of Double-Decker Phthalocyanine on Gold(111) Surface: From Macroscopic to Microscopic Scale
Sorbonne Univ, CNRS, Inst Nanosci Paris, UMR 7588, 4 Pl Jussieu, F-75005 Paris, France.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory. Helmholtz Zentrum Berlin Bessy II, Inst Methods & Instrumentat Synchrotron Radiat Re, Albert Einstein Str 15, D-12489 Berlin, Germany.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory. Natl Univ Singapore, Dept Mech Engn, Block EA 07-08,9 Engn Dr 1, Singapore 117576, Singapore.
Univ Bourgogne, CNRS, ICMUB, UMR 6302, F-21078 Dijon, France.
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2018 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 122, no 46, p. 26480-26488Article in journal (Refereed) Published
Abstract [en]

Unveiling the self-organization mechanism of semiconducting organic molecules onto metallic surfaces is the first step to design hybrid devices in which the self-assembling is exploited to tailor magnetic properties. In this study, double-decker rare-earth phthalocyanines, namely, lutetium phthalocyanine (LuPc2), are deposited on Au(111) gold surface forming large-scale self-assemblies. Global and local experimental techniques, namely, grazing incidence X-ray diffraction and scanning tunneling microscopy, supplemented by density functional theory calculations with van der Waals corrections, give insight into the molecular structural arrangement of the thin film and the self organization at the surface. Our results show unambiguously that the two plateaus of the double-decker phthalocyanine present a different rotation than the isolated molecule. This is evidenced by density functional theory simulations of optimized LuPc2 monolayer showing a perfect agreement with experimental findings. Moreover, the stabilized structure of double layers reveals an eclipsed configuration of the molecules in the stacking, having the ligand plateaus parallel to the gold surface. The high crystallinity of the molecular assembly and its weak electronic coupling with the metallic substrate is expected to open new perspective in magnetic devices.

Place, publisher, year, edition, pages
2018. Vol. 122, no 46, p. 26480-26488
National Category
Condensed Matter Physics Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-372453DOI: 10.1021/acs.jpcc.8b08462ISI: 000451495600021OAI: oai:DiVA.org:uu-372453DiVA, id: diva2:1276085
Funder
Swedish Research Council, 2014-3776EU, FP7, Seventh Framework Programme, 607232 THINFACEAvailable from: 2019-01-07 Created: 2019-01-07 Last updated: 2019-01-07Bibliographically approved

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Bidermane, IevaLüder, JohannBrena, Barbara

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