Fig. 5: Long-term operational stability of FAPbI3 PSCs.
From: Mitigating residual MA+ for stable FAPbI3 perovskite photovoltaics
A Evolution of the PCEs tracked under 85 °C/85% RH dual stress following the ISOS-D-2 protocol. B Maximum power point (MPP) tracking of control and target PSCs under continuous one-sun light soaking at ~55 °C. The initial PCEs of the devices are 21.3% and 24.5% for the control and target devices, respectively. Cross-sectional HAADF images and EDX mapping of the (C) control and D target aged devices, respectively. The EDS line scan of the cross-sectional sample of the (E) control and F target aged devices.
