Green hydrogen from solar energy

The photoelectrochemical Schlenk cell in the solar simulator. The rectangular gray area with black framing in the foreground is the photoelectrochemical solar cell. Researchers around the world are working on more efficient methods for producing hydrogen. Hydrogen could make a decisive contribution to reducing the consumption of fossil raw materials, especially if it is produced using renewable energies. Existing technologies for producing climate-neutral hydrogen are still too inefficient or too expensive for broader application. A research team at the University of Tübingen is now presenting a new type of solar cell with remarkably high efficiency. It enables decentralized production of hydrogen and has the potential for industrial-scale applications.