Regensburg 2025 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 80: Organic Molecules on Inorganic Substrates: Electronic, Optical and Other Properties I
O 80.2: Vortrag
Donnerstag, 20. März 2025, 10:45–11:00, H4
STM topography and photoluminescence of three different Eu complexes — •Adrian Ebert1, Lukas Gerhard1, Julia Feye2, Senthil Kumar Kuppusamy3, Mario Ruben3, Peter Roesky2, and Wulf Wulfhekel1 — 1Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Karlsruhe, Germany — 2Institute for Organic Chemistry, Karlsruhe Institute of Technology, Karlsruhe, Germany — 3Institute of Nanotechnology, Karlsruhe Institute of Technology, Karlsruhe, Germany
We explore the self-assembly and luminescence properties of three distinct Europium (Eu) complexes *Eu(tta)3(H2O)2 , Eu(btfa)3(bpy) , and Eu(tta)3(bpy) * on a Au(111) surface. Utilizing Scanning Tunneling Microscopy (STM), we explore the molecular topography and the ordered structures formed by these complexes, providing insight into their surface interactions. The Europium Eu3+ ion, a member of the lanthanide series, is renowned for its unique photophysical properties, particularly its sharp emission lines and long-lived luminescence, which make it a valuable component in light-emitting devices, bio-imaging, and sensing applications.
Keywords: Europium; Photoluminescence; STM; Rare Earth; 4f