HESEC: new methods for energy research As part of the changeover to sustainable energy generation, more and more research is being conducted into electrochemical energy conversion processes. Title: High-energy surface X-ray scattering for electrocatalysis and energy science HESEC Objective: To make atomic structural changes to electrodes for fuel cells and electrolytic hydrogen production visible using high-energy X-ray beams.
Project leader: Prof.
Title: Experiment to investigate fast and ultrafast dynamics at liquid interfaces using optical pump-X-ray-sample techniques. Objective: To investigate the interfaces between liquids and gases at short time scales using X-ray scattering experiments.
Karapetrov, D. Fouss et al. Three collimators to allow only synchrotron beam to sample. Advanced Materials Volume 31, Issue In addition to direct imaging with electron microscopy or scanning tunneling microscopy, the key to understanding the properties of surfaces and interfaces lies in the analysis of their structure using crystallographic methods.
Project leader: Dr. This should allow better understanding of new properties, such as transporting current without losses. Objective: To film ultrafast changes to material properties and the course of chemical reactions as completely as possible via a photoelectronic signal. Objective: To produce customised quantum materials and optimise them using high-brilliance X-rays. Kopie 9. Julia Siekmann.
The researchers can analyse the interfaces between liquids and gases at atomic level using a high-performance laser. How the arrangement of atoms on a surface changes tells scientists a lot about the processes taking place there, like on electrodes in a fuel cell. The project should enable quantum materials to be produced specifically down to the last atom, and be optimised using the research results from the unique DESY experiments.
An intensive X-ray laser is directed onto the interface, an X-ray detector measures the intensity of the reflected beam. Share Give access Share full text access. Share full text access. Please review our Terms and Conditions of Use and check box below to share full-text version of article. Figure 1 Open in figure viewer PowerPoint. Layer thicknesses are not to scale.
Figure 2 Open in figure viewer PowerPoint. Blue and beige shading, respectively, indicate occupied and unoccupied electronic states, as well as their corresponding spectra. Figure 4 Open in figure viewer PowerPoint. Raw data are represented as open black circles, individual species fit components are represented in green and red colors, and the sum is displayed in blue.
Literature values for different compounds are depicted as boxes. Figure 5 Open in figure viewer PowerPoint. The features labeled 1 and 2 are discussed in the text. Reproduced with permission.
Figure 6 Open in figure viewer PowerPoint. The inelastic region is magnified by a factor of The extracted bandgaps are indicated. Figure 7 Open in figure viewer PowerPoint. Figure 8 Open in figure viewer PowerPoint. Electronic surface bandgaps are listed underneath the respective diagram. All values are given in eV. Conflict of Interest The authors declare no conflict of interest. References 1 M.
Green , Y. Hishikawa , E. Dunlop , D. Levi , J.
Photovoltaics , 26 , Google Scholar. Crossref Google Scholar. Citing Literature.
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Browse All Figures Return to Figure. Previous Figure Next Figure. Email or Customer ID. Forgot password? Old Password. New Password. Password Changed Successfully Your password has been changed. Returning user. Request Username Can't sign in? In this new project, high-quality samples should be produced in close proximity to the DESY research facilities.
The electronic, magnetic and optical properties of the materials can be determined using the unique examination methods available there, like photoelectron spectroscopy. The results should be used to specifically optimise the production of materials on site. These customised quantum materials could open up completely new technological possibilities, like transporting electric current without any losses. Ultrashort flashes of light in the X-ray range - 27, per second - will be produced in the research facility in Schenefeld in Schleswig-Holstein.
Rossnagel wants to use an ultrafast camera to film and analyse the motion of electrons in materials and during chemical reactions. In the nano-cosmos, different laws prevail than in the macroscopic world - those of quantum physics. Through intensive, interdisciplinary cooperation between physics, chemistry, engineering and life sciences, the priority research area aims to understand the systems in this dimension and to implement the findings in an application-oriented manner. Molecular machines, innovative sensors, bionic materials, quantum computers, advanced therapies and much more could be the result.
Title: High-energy surface X-ray scattering for electrocatalysis and energy science HESEC Objective: To make atomic structural changes to electrodes for fuel cells and electrolytic hydrogen production visible using high-energy X-ray beams. Project leader: Prof.