https://doi.org/10.1016/j.joule.2023.10.014

Compared with its small-molecular counterparts, Poly-4PACz shows higher
conductance and better wettability on conductive substrates. In addition, Poly-
4PACz can further passivate interfacial traps and stabilize the cells. Consequently,
blade-coated perovskite solar cells based on Poly-4PACz realize a high efficiency
of 24.4% with good operational stability, and a 20.7%-efficiency perovskite solar
module is also achieved at an aperture area of 25.0 cm2.