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In: Energymaterials

A group of 14 volunteers gathered one week on Zoom. From morning coffee until late in the night, they tackled intricate problems and worked out great solutions based on machine learning for digital twins of batteries or for predicting cracks in materials. “This year, we had the most successful hackathon so far, it was incredible,” says HZB data scientist Gregor Hartmann, who initiated the Hackathon. Many problems in research require a deep understanding of the material as well state of the art knowledge in methods of artificial intelligence. “You need this very close collaboration between the domain scientists and the data scientists, says Gregor Hartmann,Read More →

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In: Energymaterials, Lightsources

Nanoparticles are tiny, really tiny. Only a fraction of a micrometer or some nanometers in size. And only some thousands of molecules strong,  their properties can differ dramatically from those of their larger cousins. Titaniumdioxide, a whitish powder, can form such nanoparticles. In water, these nanoparticles can act as catalysts, when excited with light. and facilitate water splitting or water remediation. However, what happens exactly when TiO2 and water get into contact and which impact this is having on the electronic structure of TiO2 remained in the dark: it is very tricky to probe nanoparticle–water interface experimentally and to observe changes. Soft X-rays at BESSYRead More →