SKM 2023 – scientific programme
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O: Fachverband Oberflächenphysik
O 22: Poster Session: Organic Molecules on Inorganic Substrates I
O 22.7: Poster
Monday, March 27, 2023, 18:00–20:00, P2/EG
Electronic properties of organic/transition metal dichalcogenide heterostructures — •Hibiki Orio1,2, Maximilian Ünzelmann1,2, Kiana Baumgärtner1,2, Christian Metzger1,2, Markus Scholz3, Kai Rossnagel3,4, and Friedrich Reinert1,2 — 1Experimentelle Physik VII, Universität Würzburg, Würzburg, Germany — 2Würzburg-Dresden Cluster of Excellence ct.qmat, Würzburg Dresden, Germany — 3Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany — 4KiNSIS, Universität Kiel, Kiel, Germany
Adsorption of organic molecules on transition metal dichalcogenides (TMDCs) can modify the electronic properties of both the organic layer as well as the substrate [1]. Here, we investigate the electronic structure of copper phthalocyanine (CuPc) grown on the TMDC TiSe2 using angle-resolved and X-ray photoelectron spectroscopy. We find that the binding energy of the highest occupied molecular orbital increases gradually from 310 to 430 meV upon 4 hours of X-ray radiation. On this poster, we will discuss the origin of this phenomenon.
[1] Y. L. Huang et al., Chem. Soc. Rev., 2018, 47, 3241