Regensburg 2025 – scientific programme
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DS: Fachverband Dünne Schichten
DS 1: Thin Film Properties
DS 1.4: Talk
Monday, March 17, 2025, 10:15–10:30, H3
Molecule adsorption at Sc(x)Ga(1-x)N surfaces investigated by photo electron spectroscopy — •Fabian Ullmann1,2 and Stefan Krischok1,2 — 1TU Ilmenau, Ehrenbergstraße 29, 98693 Ilmenau — 2Zentrum für Mikro- und Nanotechnologien, Gustav-Kirchoff-Straße 7, 98693 Ilmenau
ScGaN can occur in various crystal orientations. The most important are wurtzite and rock salt formation. Depending on the scandium concentration, a phase transition between these orientations can be found. ScGaN surfaces with different scandium concentrations and orientations were grown by molecular beam epitaxy (MBE) to investigate the near-surface electronic structure. The interaction of gas molecules (oxygen and water) in vacuum were analyzed by X-ray (XPS) and ultraviolet photoelectron spectroscopy (UPS).
Keywords: ScGaN; UPS; Scandium; Gallium; MBE