Events

Electrochemical interfaces of semiconductors are often poorly understood on an atomistic level as their (electronic) structure can vary significantly within the accessible electrochemical parameter space. Initial corrosion of single-crystalline systems typically introduces amorphous interfaces and -phases, creating significant challenges for the correlation between experiment and electronic structure modelling based on small supercells. [more]

Over the last decade, machine-learning interatomic potentials have become vital tools for simulating molecules and materials, unlocking time scales and system sizes that were once out of reach. [more]

Excitons are realizations of a correlated many-body wavefunction, consisting of a Coulomb-bound electron-hole pair. They are the dominant excitations in organic and two-dimensional semiconductors. Thus, to exploit the full optoelectronic potential of these materials, a complete microscopic understanding of excitons is crucial. This ultimately relies on the access to the correlated exciton wavefunction, which has hardly been realized in experiments. In this presentation, I will introduce the concepts of time-resolved photoemission orbital tomography and how it can be used to directly probe correlated exciton wavefunctions. [more]

With the elucidation of the importance of local structure in heterogeneous catalysis and the development of single-molecule electronics, there has been a strong desire to measure electrochemical interfaces with high spatial resolution. The electrochemical scanning tunneling microscope (EC-STM) allows direct observation of these interfaces at the nanoscale by measuring tunneling current between a metal tip and the electrode surface in solution. This talk will focus on my work measuring the redox reaction of a single ferrocene molecule using EC-STM using tripod-shaped molecules [1]. I will alsoshare a new method for fabricating EC-STM tips, which addresses a long-standing technical challenge in the field [2]. Finally, I will touch on the development of electrochemical tip-enhanced Raman spectroscopy (EC-TERS), which opens new possibilities for nanoscale spectroscopy on electrochemical interface [3].[1] Y. Kobayashi et al., J. Phys. Chem. C, 127, 746 (2023).[2] Y. Kobayashi et al., J. Phys. Chem. C, 127, 13929 (2023).[3] Y. Yokota et al., J. Phys. Chem. C 123, 2953 (2019). [more]

After the discovery of nuclear fission, scientists in several different countries, including National Socialist Germany, brought the potential military applications of fission to the attention of political and military authorities. [more]

Wir freuen uns, ankündigen zu können, dass das Fritz-Haber-Institut an der Langen Nacht der Wissenschaften am 28. Juni 2025 teilnehmen wird. / We are excited to announce that the Fritz Haber Institute will be participating in the Long Night of Science on June 28, 2025. [more]

The advent of in situ and operando analytical techniques in material science has allowed uncovering the importance of structural dynamics in research fields such as heterogeneous catalysis [1], nucleation and growth of crystals [2] or proteins [3]. This holds, in particular for electron microscopy related operando approaches, true to the slogan: “seeing is believing" [4]. [more]

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With the aim of enabling vital exchange of emerging expertise, the international conference “Challenges on Renewable Energy Storage” was set up. Following the first two gatherings of this kind in 2022 and 2024, the meeting will continue to bring together front runners of the fields catalysis and electrocatalysis, allowing them to exchange views on the most recent advancements, as well as to renew the necessary interdisciplinary networks. [more]