Fraunhofer ISE creates way to assess perovskite-silicon tandem PV modules
Fraunhofer ISE is leading a project that is developing methods to characterize perovskite-based tandem modules, in an effort to facilitate their industrial implementation. A specially built Wavelabs solar simulator is now being used at the institute’s CalLab PV Modules.
Kaneka presents 29.2%-efficient 2T silicon-perovskite tandem solar cell
Kaneka’s two-terminal tandem perovskite solar cell has achieved the highest efficiency ever recorded for such a device based on an industrial Czochralski (CZ) silicon wafer. It has an open-circuit voltage of 1.929 V, a short-circuit current density of 19.5 mA cm−2, and a fill factor of 77.55%.
All-perovskite tandem solar cell with 24.9% efficiency via cross-linkable small molecules
Scientists in China found that a change to the hole transport layer material helped to reduce voltage loss in a perovskite solar cell. The discovery demonstrates a promising new pathway to overcoming a major challenge for perovskites – particularly those used as the top layer in a tandem device.
Focus on the negatives: A new path to highly efficient tandem cells
Scientists in the U.S. and South Korea have identified what could be a new route to high-efficiency perovskite-silicon tandem solar cells. Through engineering negatively charged particles in the passivation layer, the group made a tandem cell with 26.7% efficiency. With further tweaks to the silicon layer they expect to be able to surpass 30%.
Australian researchers push boundaries on tandem solar cells
Scientists at Australian National University have achieved a 27.7% efficiency rate for mechanically stacked perovskite-silicon tandem cells.
