August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【203】Band structure and image potential states of h-BN/Cu(111)

Aug 31, 2021, 2:00 PM
Room C

Room C

Talk Surfaces, Interfaces and Thin Films Surfaces, Interfaces and Thin Films


Mr Jan Eric Beckord (University of Zurich)


We present a study of the electronic structure of a hexagonal boron nitride (h-BN) monolayer on Cu(111). Epitaxial growth is confirmed by X-Ray photoelectron spectroscopy (XPS) and diffraction (XPD), and ARPES reproduces the bands aligned to the vacuum level as seen on other metal substrates. A very small upwards shift of the Shockley surface state corroborates the small substrate interaction. The work function is significantly reduced from 4.9 eV to 4.1 eV, but 2PPE measurements show that the Cu(111) image potential state energies are barely changed. However, we expect a significantly longer lifetime due to the reduced work function, as has been observed for other dielectric monolayers on copper.

Primary author

Mr Jan Eric Beckord (University of Zurich)


Dr Matthias Hengsberger (University of Zurich) Prof. Jürg Osterwalder (University of Zurich)

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