Improve Solar Cells
Researchers in the Soft Matter Physics and Optoelectronics Group are involved in a Nature paper on perovskite-organic tandem solar cells, published Apr. 13, 2022.
Led by the University of Wuppertal and with participation of the Universities of Cologne and Tübingen as well as the Helmholtz Center Berlin and the Max Planck Institute for Iron Research in Düsseldorf, the team succeeded in setting a world record with a solar cell efficiency of 24%. Instead of silicon, organic materials and novel perovskite semiconductors are used to make the solar cells, which require less material and energy. The tandem solar cells are electrically and optically interconnected by an ultra-thin layer of indium oxide to keep losses low. The results provide a decisive contribution in the context of energy transition.