Physisorption-like Interaction at the Interfaces Formed by Pentacene and Samarium
نویسندگان
چکیده
N. Koch,*,† J. Ghijsen,‡ R. L. Johnson,§ J. Schwartz,⊥ J.-J. Pireaux,‡ and A. Kahn† Department of Electrical Engineering, Princeton UniVersity, Princeton, New Jersey 08544, Laboratoire Interdisciplinaire de Spectroscopie Electronique, Facultés UniVersitaires Notre-Dame de la Paix, B-5000 Namur, Belgium, II. Institut für Experimentalphysik, UniVersität Hamburg, D-22761 Hamburg, Germany, and Department of Chemistry, Princeton UniVersity, Princeton, New Jersey 08544
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Pentacene on Ag(111): correlation of bonding distance with intermolecular interaction and order.
We report coverage and temperature dependent bonding distances of vacuum-sublimed pentacene (PEN) submonolayers on Ag(111) obtained by the X-ray standing wave technique. The average vertical bonding distance of 2.98 Å at room temperature for 0.50 monolayer (ML) coverage increases to 3.12 Å for 0.75 ML due to competing intermolecular and adsorbate-substrate interactions. In contrast, decreasing ...
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