Surface & Interface Science Marburg
We do basic experimental research in the field of surface and interface science. Our investigations focus on optical excitations, electron transfer processes and vibrational properties of solid surfaces and internal interfaces. Our main methods are ultrafast laser spectroscopy, time-resolved photoemission, scanning tunnelling microscopy and infrared spectroscopy. Our experiments on well-defined monocrystalline metal and semiconductor samples are usually carried out in ultra-high vacuum. In recent years, the focus has shifted from very simple model systems such as hydrogen on silicon or image-potential states to more complex organic/inorganic interfaces and to surfaces and interfaces of novel materials such as topological insulators or two-dimensional semiconductors. (Introduction for students, in German)
Science Slam Winner
Sarah Zajusch wins Science Slam in Cologne with a contribution on Two-Photon Photoemission from 2D semiconductors […]
Poster Presentation Prize at DPT 2022 in Karlsruhe
ERC Synergy Grant Orbital Cinema
The European Research Council (ERC) awarded a Synergy Grant of 11.3 million Euros to the project “Photoemission Orbital Cinematography: An ultrafast wave function lab”, in short “Orbital Cinema” […]
Surface Dynamics
Prof. Dr. Ulrich Höfer
- Ultrafast dynamics of electronic excitations
- Adsorption on semiconductor surfaces
- Interface Spectroscopy
Dr. Robert Wallauer
- Time-resolved momentum microscopy
Surface Analytics
Prof. Dr. Peter Jakob
- Layered metallic and organic structures
- Infrared vibrational spectroscopy of adsorbates
Contact
Stallberg et al.,
J. Phys. Chem. C
July 2022
Ultrafast exciton dynamics and charge transfer at PTCDA/metal interfaces
Zimmermann et al.,
ACS Nano
September 2021
Ultrafast charge-transfer dynamics in twisted MoS2/WSe2 heterostructures
Wallauer et al.,
Nano Lett.
June 2021
Momentum-resolved observation of exciton formation dynamics in monolayer WS2
Schmid et al.,
Nature
May 2021
Tuneable non-integer high-harmonic generation in a topological insulator