From Precursor to Performance: The Impact of FAI Impurities on Halide Perovskite Thin-films and Devices

Key Points

• The central aim is to investigate how FAI impurities impact the performance and stability of metal halide perovskite thin-films and devices.
• Analyses of power conversion efficiencies of perovskite solar cells
• Stability testing of thin-film devices under various conditions
• Comparison of performance metrics with and without FAI impurities
• FAI impurities negatively affect long-term stability of perovskite devices
• Devices with reduced impurities showed improved efficiency
• Higher power conversion efficiencies correlate with lower impurity levels