Dresden 2014 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 18: Organic Thin Films I
DS 18.3: Vortrag
Mittwoch, 2. April 2014, 10:00–10:15, CHE 91
Lead-phthalocyanine on graphite(0001): quantitative structural analysis via low-energy electron diffraction — •Matthias Meissner1, Roman Forker1, Torsten Fritz1, Yu Watanabe2, Noriaki Kawakita2, Takashi Yamada2, Hiroyuki S. Kato2, and Toshiaki Munakata2 — 1Institute of Solid State Physics, Friedrich-Schiller University, Max-Wien-Platz 1, Jena 07743, Germany — 2Department of Chemistry, Graduate School of Science, Osaka University, Osaka 560-0043, Japan
Thin layers of organic molecules have attracted a wide interest since the dawn of organic electronics because the performances of those devices critically depend on interface properties. The system of lead-phthalocyanine (PbPc) on graphite has been studied intensively with scanning tunneling microscopy (STM) [1], photoemission electron microscopy PEEM [2], and two photon photoemission spectroscopy (2PPE) [3]. It was found that the electronic properties of the interface are coverage dependent [2]. Thus, for a comprehensive understanding of the results the structure of the PbPc layer is of interest. Therefore, a quantitative analysis of LEED measurements was carried out under varying conditions like temperature and coverage graphite single crystals and will be compared to STM, PEEM, and 2PPE results.
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