Fig. 12: Interface engineering of the perovskite/NiOx interface.
From: Recent progress in the development of high-efficiency inverted perovskite solar cells

a Schematic illustration of excess titration-reactive A-sites at the NiOx surface, preventing the formation of PbI2-xBrx at the interface. Reproduced with permission from Ref. 120. Copyright 2020, Elsevier. b Schematic illustration of the SRE process. c Long-term MPPT of devices treated with the SRE process measured under one-sun intensity illumination in a glovebox. Reproduced with permission from Ref. 151. Copyright 2022, Elsevier.