Gerhard Ertl Lecture & Award

Gerhard Ertl Lecture & Award

The Ertl Lecture Award was established in 2008 by the three Berlin universities (Humboldt University, Technical University and Free University) and the Fritz Haber Institute of the Max Planck Society and is awarded once a year. It commemorates former FHI Director Gerhard Ertl's Nobel Prize in Chemistry, which he received in 2007. The prize honours outstanding personalities and researchers in the field of catalysis where Ertl carried out exceptional research for many decades. The prize, sponsored by BASF, includes a one-week research stay at the participating Berlin institutions and a keynote lecture. The winner is typically announced in Spring, the lecture takes place around the December 10th, the anniversary of Ertl's Nobel Prize reception.

Host: Akitoshi Shiotari

Multilayer supramolecular architectures at device interfaces: Prospects for electron and phonon transport

  • PC Department Online Seminar
  • Date: Nov 22, 2021
  • Time: 11:00 AM (Local Time Germany)
  • Speaker: Prof. Carlos-Andres Palma
  • Institute of Physics Chinese Academy of Sciences & Humboldt-Universität zu Berlin
  • Host: Akitoshi Shiotari
Manufacturing atomically-precise functional nanoarchitectures with tailored physics at well-defined device interfaces is a frontier in bottom-up nanomaterial [1,2] and condensed matter design [3]. A long-standing challenge in the field is the integration of functional elements in proof-of-concept devices. One strategy to alleviate the cumbersome device integration of single-layered molecular systems, is to achieve increasing control over vertical supramolecular heterojunctions and multilayers, so as to transition from ‘on-surface’, to ‘out-of-surface’ surface science protocols. [more]

Single-Molecule Studies of Dissociation Reactions of O2 Molecules on Ag(110) by Electrons, Holes, and Localized Surface Plasmons

  • PC Department Online Seminar
  • Date: Jun 27, 2022
  • Time: 10:00 AM (Local Time Germany)
  • Speaker: Emiko Kazuma
  • Department of Applied Chemistry, The University of Tokyo
  • Host: Akitoshi Shiotari
A mechanistic understanding of the dissociation of O2 molecules adsorbed on metal surfaces is crucial not only for the precise control of oxidation reactions but also for the development of various heterogeneous oxidation catalysts. [more]

Polarons Imaged in Real Space by Combined AFM/STM

Polarons [1] are quasiparticles that form in ionic lattices due to the interaction of excess charges with lattice distortions. This leads to a spatial confinement of the charge and appearance of many novel phenomena. In past decades, polarons turned out to play an important role in electrical transport, optical properties, organic electronics, catalysis, or in exotic materials properties such as colossal magnetoresistance or high-Tc superconductivity. [more]

Structure and Electronic Properties of Ultrathin Indium Films on Si(111)

Ultrathin metal films on atomically flat semiconductor substrates have been of great interest to investigate physical properties of two-dimensional (2D) metals. Indium-adsorbed Si(111) surfaces are one of the most explored metal/semiconductor systems. [more]

Perovskites as Supports for Single-atom Catalysis

Perovskite surfaces attract attention in the catalysis community due to these materials’ promising chemical properties, good ability to separate electron-hole pairs in light harvesting, and the presence of ferroelectricity in many perovskites. While perovskites possess a unique set of interesting bulk properties, their surfaces are much less understood; the main open questions are their structural stability and associated chemical reactivity and catalytic selectivity. [more]

Hydrogen-Involved Surface Processes on Model Catalysts

The first topic of this talk is focused on the atomic-scale processes of dissociative adsorption and spillover of hydrogen on the single atom alloy catalyst (SAAC) Pd/Cu(111) [1]. The hydrogen spillover on the Cu(111) surface from the Pd site was successfully observed in real-time using infrared reflection absorption spectroscopy (IRAS) at 80 K. The observed chemical shifts of Pd 3d5/2 in X-ray photoelectron spectra (XPS) indicate that H2 is dissociated and adsorbed at the Pd site initially. [more]

Light, Tips and Molecules: SPM on the Path to Direct Nano-Optical Measurements

Exploration of essential photophysics at the level of individual molecules and atoms requires highly specialized optical spectroscopies that work at the very limit of instrument sensitivity or have to use plasmonic nanostructures - in order to overcome the fundamental resolution limits achievable with visible and infrared light. [more]

Gapless Detection of Broadband Terahertz Pulses Using a Metal Surface in Air-based on Field-induced Second-harmonic Generation

We investigate second-harmonic generation (SHG) light from a Pt surface in air under terahertz (THz) pulse irradiation. THz pulse-modulated SHG intensity shows a clear time profile of the THz field. [more]

Workshop on “THz and SFG spectroscopy and related phenomena in Solid-State Physics and Surface Science"

[more]

Workshop on “THz and SFG spectroscopy and related phenomena in Solid-State Physics and Surface Science"

[more]

Spin Effects in Adsorbed Molecules

  • PC Department Seminar
  • Date: May 16, 2024
  • Time: 02:00 PM (Local Time Germany)
  • Speaker: Richard Berndt
  • Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel
  • Location: Building G
  • Room: 2.06
  • Host: Akitoshi Shiotari
Using low-temperature scanning tunneling microscopy and occasionally synchrotron radiation methods we investigate molecules at surfaces. The experiments along with model calculations reveal molecular spin states and electron transport properties as well as intermolecular interactions. [more]
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