Double amidino-mediated multiple hydrogen-bonded Dion–Jacobson perovskites enable oriented crystallization for efficient inverted FAPbI3 solar cells and modules (642 cm2)

Key Points

• Champion efficiencies reached 26.10% for solar cells, demonstrating substantial improvements in performance.
• Alternative spacer PhDFACl2 facilitated crystallization in perovskites, leading to enhanced device efficiency.
• Use of amidino derivatives in perovskite solar cells offers promising avenues for optimizing energy conversion.
• Research indicates potential for scaling up to larger modules with demonstrated success in various device sizes.