Tonio Buonassisi

TL;DR: Because photocurrents are near the theoretical maximum, the focus is on efforts to increase open-circuit voltage by means of improving charge-selective contacts and charge carrier lifetimes in perovskites via processes such as ion tailoring.

TL;DR: In this paper, the authors improved the efficiency of monolithic, two-terminal, 1-cm2 perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide pervskite.

TL;DR: In this paper, a transparent silver nanowire electrode was used on perovskite solar cells to achieve a semi-transparent device, which was placed in a mechanically-stacked tandem configuration onto copper indium gallium diselenide (CIGS) and low-quality multicrystalline silicon (Si) to achieve solid-state polycrystalline tandem solar cells with a net improvement in efficiency over the bottom cell alone.

TL;DR: In this paper, the authors propose that defect tolerance emerges from fundamental electronic-structure properties, including the orbital character of the conduction and valence band extrema, the chargecarrier effective masses, and the static dielectric constant.

TL;DR: In this article, a monolithic perovskite/silicon multi-junction solar cell with a VOC as high as 1.65 V was proposed. But the performance of this cell was not evaluated.