A monolithic (FAPbI3)0.83(MAPbBr3)0.17 perovskite/rear-textured-homo-junction-silicon tandem solar cell with a steady-state 21.8% efficiency has been achieved on 16 cm2 using a new front top metal grid design producing an impressive fill factor (76% under forward scan or 78% under reverse scan). The efficiency and fill factor are the highest for monolithic perovskite/Si tandems larger than 10 cm2.
Zheng, J., Mehrvarz, H., Ma, F-J., Lau, C. F. J., Green, M. A., Huang, S., & Ho-Baillie, A. W. Y. (2018). 21.8% efficient monolithic perovskite/homo-junction-silicon tandem solar cell on 16 cm2. ACS Energy Letters, 3(9), 2299-2300. https://doi.org/10.1021/acsenergylett.8b01382