“…Below, we report our recent experimental exploration of the performance of a 4T tandem device based on a stack of perovskite and bifacial c-Si solar cells. For this purpose, a semitransparent 17.0% perovskite “p-i-n stack” − solar cell (3 × 3 mm 2 ) with a record high near-infrared transmittance (average NIR transmittance of 95%) was combined with a metal wrap through silicon hetero-junction (MWT-SHJ) , bifacial solar cell. The perovskite device is fabricated by TNO in the Solliance collaboration, whereas the bottom device resulted from a collaboration of TNO and Choshu Industry Co.…”