Regensburg 2025 – scientific programme

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DS: Fachverband Dünne Schichten

DS 13: Poster

DS 13.22: Poster

Thursday, March 20, 2025, 18:00–20:00, P1

Transition metal oxide doped ZnO films for electro-synthesis — •Shagun Thakur, Pia Henning, and Jasnamol Palakkal — Institute of Materials Physics, Georg-August-University of Göttingen, Germany

Understanding the crystal structure and morphology is crucial for investigating the electrocatalytic activity of inorganic materials. Zinc oxide doped with transition metal oxides are interesting candidates for electro-conversions owing to their unique reactivity. The ZnO crystal exhibits different polarity and surface stability in different crystallographic directions [1][2]. With this aim of producing well-defined ZnO films, we utilized the advancements of thin film technology.

Sputtering is used for growing epitaxial undoped and Mn-doped ZnO thin films with temperature and oxygen control. We will also use pulsed laser deposition which is modified by attaching molecular beam sources to prepare such surfaces with precise fine-doped elements and stoichiometry control. These films will be later compared.

This work presents our ongoing studies on transition metal-doped ZnO thin films, focusing on magnetic dopants and their impact on catalytic activity via sputtering and hybrid PLD systems.

[1] C.-H.P. Sung-Ho Na, First-Principles Study of the Surface of Wurtzite ZnO and ZnS - Implications for Nanostructure Formation, The Journal of the Korean Physical Society, 54 (2009) 5

[2] S. Akhter, K. Lui, H.H. Kung, Comparison of the chemical properties of the zinc-polar, the oxygen-polar, and the nonpolar surfaces of zinc oxide, The Journal of Physical Chemistry, 89 (1985) 1958-1964

Keywords: doped ZnO thin films; Electrosynthesis; Sputtering; Hybrid PLD