Unique X-ray microscope paves the way to more powerful batteries

New insights into the morphological and chemical changes in battery materials

21-Nov-2024 - New cathode materials are being developed to further increase the capacity of lithium batteries. Multilayer lithium-rich transition metal oxides (LRTMOs) offer particularly high energy density. However, their capacity decreases with each charging cycle due to structural and chemical changes. ...

“Optical fingerprints” on an electron beam

Researchers observe non-linear optical processes in the electron microscope

17-Jan-2024 - The precise control of electron beams in so-called transmission electron microscopes (TEM) makes it possible to analyze materials or molecules at the atomic level. Combined with short light pulses, these devices can also be used to analyze dynamic processes. Researchers from Göttingen and ...

Tailored electron pulses for improved electron microscopy

Interplay of free electrons

16-Oct-2023 - Electron microscopes provide unique vistas of nanoscale structures, but their resolution is limited by the mutual repulsion of electrons. Researchers in Göttingen have now succeeded in precisely measuring the influence of these interactions. They discovered an “energetic fingerprint” in which the ...

WITec announces Paper Award 2022 winners

The prizes go to scientists from the US, Germany and China

10-Aug-2022 - The WITec Paper Awards 2022 have been given to scientists from the US, Germany and China, recognizing their work in cement chemistry, pharmacy and methane hydrate chemistry. Every year, the WITec Paper Award highlights three scientific publications that contain data acquired with a WITec ...

NanoCar Race II: Eight teams from three continents gather for the world's smallest race - the race of the molecules

24-Mar-2022 - When they hear the term "24-hour race," many people might think of Le Mans, Daytona, or even the Nürburgring. Images of colorful cars racing by at breakneck speed, accompanied by deafening noise and the smell of burning high-performance fuels may appear in the mind's eye. But at the NanoCar Race ...

High-resolution microscope built from LEGO and bits of phone

Research shows constructing microscope improves children’s understanding - enlightening, educational and fun

06-Jul-2021 - Microscopy is an essential tool in many fields of science and medicine. However, many groups have limited access to this technology due to its cost and fragility. Now, researchers from the Universities of Göttingen and Münster have succeeded in building a high-resolution microscope using nothing ...

A microscope for everyone

The open-source system from the 3D printer delivers high-resolution images like commercial microscopes at hundreds of times the price

27-Nov-2020 - Modern microscopes used for biological imaging are expensive, are located in specialized laboratories and require highly qualified staff. To research novel, creative approaches to address urgent scientific issues — for example in the fight against infectious diseases such as Covid-19 — is thus ...

Laser takes pictures of electrons in crystals

The experiments pave the way towards to deeply understand and eventually control the chemical and the electronic properties of materials

03-Jul-2020 - Microscopes of visible light allow us to see tiny objects such living cells and their interior. Yet, they cannot discern how electrons are distributed among atoms in solids. Now researchers around Prof. Eleftherios Goulielmakis of the Extreme Photonics Labs at the University of Rostock and the ...

Materials Testing: Detecting damages in non-magnetic steel through magnetism

24-Jul-2018 - Wear, corrosion, material fatigue - these signs of degradation are common to most materials. This makes it all the more important to detect damage early, preferably on the micro scale. Magnetic test methods are often used for this purpose, which was previously impossible with non-magnetic steel. ...

Handshake of atoms: lefties or righties?

25-Feb-2016 - A team of researchers from the Department of Physics at Hamburg University, together with col-leagues from the Radboud university in Nijmegen, the FZ Jülich and the MPI of Solid State Research in Stuttgart, explored the atomistic origin of magnetization handedness in a structure containing as few ...