Two Humboldt-Fellows join HZB
Humboldt-Fellow Kazuki Morita (left) joined the team of Antonio Abate to advance solar energy research. Qingping Wu (right) works on battery stability with Prof. Yan Lu within his Humboldt-Fellowship. Both will stay until mid 2026. © privat
In 2024, two young scientists joined HZB as Humboldt Fellows. Kazuki Morita joined Prof. Antonio Abate's group and brings his expertise in modelling and data analysis to solar energy research. Qingping Wu is an expert in battery research and works with Prof. Yan Lu on high energy density lithium metal batteries.
“I chose to come to HZB because of its outstanding reputation in materials and energy research and the opportunity to work with Prof. Yan Lu and her team on cutting-edge electrochemical storage technologies,” says Qingping Wu. A chemist by training, Wu completed his PhD in chemical engineering in 2021 and worked as an assistant professor at the Chongqing Institute of Green and Intelligent Technology in China. He joined HZB in August 2024 and will stay until the end of July 2026. His research focuses on aging mechanisms and optimisation of electrode/electrolyte interfaces for high energy density lithium metal batteries.
Kazuki Morita earned his PhD from the Department of Materials, Imperial College London, UK, in 2022. He was a postdoctoral scientist at the Department of Chemistry, University of Pennsylvania, USA before joining the team of Prof. Antonio Abate with a Humboldt-Fellowship in May 2024 for the next two years. “I have been reading papers from HZB including ones from Antonio's since I was a PhD student. HZB is an ideal environment to pursue my research,” he says. He will study the stability of tin halide perovskites. “In particular, I will investigate the tin oxidation process using theory and simulations, which is my area of expertise. Prof. Antonio Abate primarily focuses mainly on experiments, so our expertise is complementary,” he says.
- BESSY II: Evaporated perovskites in tandem solar cells improvedPerovskite-silicon tandem solar cells achieve significantly higher efficiencies than silicon solar cells on their own. One particularly attractive method is co-evaporation of the perovskite precursor molecules on top of the silicon subcell. Scientists at HZB have analysed film growth on the nanoscale at BESSY II and found a new way to improve the quality of the perovskite layer: adding a thin seed layer of caesium chloride between the two sub-cells promotes uniform perovskite growth and suppresses the formation of undesired lead iodide at the interface.
- Hatice Mutlu appointed to the Helmholtz Institute HIPOLE in JenaProf. Dr Hatice Mutlu is the new professor of sustainable polymer chemistry at HIPOLE Jena, the Helmholtz Institute for Polymers in Energy Applications. On 17 August 2026, she visited the HZB campus in Berlin-Adlershof including the BESSY II lightsource and discussed future collaboration with researchers and the board of directors.
- Green hydrogen with PEC electrolysers: New insights into transport processesOne method of storing solar energy is to use PEC electrolysers to produce hydrogen. However, scaling up this technology remains challenging. Now, a team at the HZB Institute for Solar Fuels has used 2D fluorescence imaging and particle velocimetry to observe the movement of ions and dissolved gases within the electrolyte during electrolysis. These new insights may prove useful in the development of larger PEC electrolysers.