Anion-Competition Regulation of PbI2 Frameworks for Two-Step Fabricated Perovskite Solar Cells

Key Points

• The research aims to enhance the efficiency and stability of large-area perovskite solar cells by regulating PbI2 frameworks.
• Utilized a two-step fabrication process for solar cells.
• Analyzed the influences of different anions on PbI2 film properties.
• Measured morphology and crystallization kinetics of perovskite layers.
• Demonstrated improved film morphology leading to higher efficiency.
• Observed better crystallization dynamics with optimized anion compositions.
• Achieved stability in large-area solar cells, supporting scalable production.