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Berlin 2024 – scientific programme

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O: Fachverband Oberflächenphysik

O 72: Poster: Scanning Probe Microscopy: Light Matter Interaction at Atomic Scales

O 72.1: Poster

Wednesday, March 20, 2024, 18:00–20:00, Poster D

Luminescence of molecules with STM -- from electron to photon excitationsBenjamin Doppagne1, Shuiyan Cao1, Song Jiang1, Katharina Kaiser1, Luis Parra Lopez1, Anna Rosławska1, Kirill Vasilev1, Tomas Neuman1, Andrei G. Borisov2, Javier Aizpurua3, Michelangelo Roméo1, Alex Boeglin1, Frederic Cherioux4, Eric Le Moal2, Hervé Bulou1, Fabrice Scheurer1, and •Guillaume Schull11Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France. — 2Institut des Sciences Moléculaires d'Orsay (ISMO), UMR 8214, CNRS, Université Paris-Saclay, 91405 Orsay Cedex, France. — 3Center for Materials Physics (CSIC-UPV/EHU) and DIPC, Donostia-San Sebastián, Spain — 4Université Bourgogne Franche-Comté, FEMTO-ST, UFC, CNRS, Besançon, France

STM-induced luminescence (STML) and tip-enhanced photoluminescence (TEPL) enable fluorescence imaging of molecules with sub-nanometer spatial resolution. While the former approach relies on tunneling electrons as an excitation source, the latter involves exciting the molecule with light. In this summary, I will highlight recent results from our team and compare the respective benefits of each method.

Keywords: STM; single-molecule fluorescence; tip-enhanced photoluminescence

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