Hao Chen, Cheng Liu, Jian Xu, Aidan Maxwell, Wei Zhou, Yi Yang, Qilin Zhou, Abdulaziz S R Bati, Haoyue Wan, Zaiwei Wang, Lewei Zeng, Junke Wang, Peter Serles, Yuan Liu, Sam Teale, Yanjiang Liu, Makhsud I Saidaminov, Muzhi Li, Nicholas Rolston, Sjoerd Hoogland, Tobin Filleter, Mercouri G Kanatzidis, Bin Chen, Zhijun Ning, Edward H Sargent
Inverted (pin) perovskite solar cells (PSCs) afford improved operating stability in comparison to their nip counterparts but have lagged in power conversion efficiency (PCE). The energetic losses responsible for this PCE deficit in pin PSCs occur primarily at the interfaces between the perovskite and the charge-transport layers. Additive and surface treatments that use passivating ligands usually bind to a single active binding site: This dense packing of electrically resistive passivants perpendicular to the surface may limit the fill factor in pin PSCs...
April 12, 2024: Science