About the project
To address the challenges of upscaling, researchers are pioneering innovative approaches to scale-up perovskite solar cell production. The HyPer project aims to develop a route to manufacture perovskite-silicon tandem solar cells on large areas that can be transferred and integrated into a high-throughput industrial fabrication line. The consortium has decided to research the hybrid two-step route, which demonstrates high performance solar cells on a lab scale and does not require the use of toxic solvents such as DMF and is compatible with industrial textured Si wafers.
Stability is a critical concern in the development of perovskite solar cells, particularly in tandem configurations with silicon bottom cells. Structural weaknesses, such as the brittleness of the perovskite film, coupled with significant thermal expansion mismatches between perovskite and silicon, can lead to strain within the perovskite layer, undermining long-term stability. Additionally, the use of wide-bandgap perovskites in 2T tandems introduces challenges related to phase segregation, necessitating innovative solutions.