Thin silicon heterojunction solar cells in perovskite shadow: Bottom cell prospective

Highlights:

• Thin wafer-based silicon heterojunction as bottom cells in perovskite-silicon tandem.
• Freedom of thicker passivation without loss in infrared light absorption under perovskite-filtered spectrum.
• Wafer thickness reduction by 40% results in only a decrease of approximately 0.35%_abs in the bottom cell efficiency.
• The implementation of an ITO/MgF2/Ag back reflector results in a greater J_SC gain in 80 µm cells than in 135 µm cells.
• Freedom of thicker passivation without loss in infrared light absorption under perovskite-filtered spectrum.

Further infomations can be find here:
https://www.sciencedirect.com/science/article/pii/S0927024824001259