Stacking solar cells on top of each other increases efficiency. Together with TNO in the EU project PERCISTAND, researchers at the Karlsruhe Institute of Technology (KIT) have now produced perovskite/CIS tandem solar cells with an efficiency of almost 25 percent - the highest for this technology to date. In addition, the combination of materials ensures lightness and versatility, so that the use of these tandem solar cells on vehicles, portable devices and foldable or rollable devices is also conceivable. The researchers present their work in the journal ACS Energy Letters. (DOI: 10.1021/acsenergylett.2c00707).
