Researchers from HZB and Humboldt University Berlin have developed a CIGS-perovskite tandem solar cell that achieves a record ...

claim to have achieved a power conversion efficiency exceeding 30% for a 1 cm 2 tandem perovskite-silicon solar cell, which they said represents a world record for a PV device of this kind.

“Once again, we have achieved remarkable progress in solar cell efficiency as a result of our ongoing investments in R&D ... tandem modules have been certified with efficiencies of 30.1% and ...

"Once again, we have achieved remarkable progress in solar cell efficiency as a result of our ongoing investments in R&D and steadfast commitment ... meter four-terminal tandem modules have been ...