The European Solar Test Installation (ESTI) has confirmed the results of King Abdullah University of Science and Technology’s (KAUST) new perovskite/silicon tandem solar cell. The 1 cm2 device also achieved a breakdown voltage of 1.974 V, a short-circuit current density of 20.99 mA/cm2, and a fill factor of 81.3%.
“After two months, we’ve set a new world record for perovskite/silicon tandem solar cells – again! With our latest update, our perovskite/silicon tandem solar cells have achieved an impressive 33.7% certified power conversion efficiency, surpassing the previous milestone of 33.2% .We hope that our new achievement will accelerate the transition to green energy,” he said.
European Solar Test Facility (PREVENTED) has confirmed the result.
The 1 cm2 cell also achieved an open circuit voltage of 1.974 V, a short circuit current density of 20.99 mA/cm2, and a fill factor of 81.3%.
KAUST announced in January 28.1% power conversion efficiency for a perovskite-silicon tandem solar cell based on textured silicon wafers. In August 2022, it claimed 26.2 percent efficiency for a monolithic perovskite-silicon tandem solar cell.
In December 2021, KAUST researchers reached power conversion efficiency of 28.2% for a tandem solar cell with an area of about 1 cm2 based on a nip perovskite stacked on top of a silicon heterojunction.
The same research group recently announced an inverted perovskite-silicon tandem solar cell with a 1 nm magnesium fluoride (MgFx)-based interlayer sandwiched between the perovskite layer and the hole transport layer (HTL) to reduce voltage drop.