5-Acetylsalicylamide as a multifunctional additive for synergistic defect passivation and crystallization control in inverted perovskite solar cells

Key Points

• The research aims to evaluate the effects of 5-acetylsalicylamide on defect passivation and crystallization in inverted perovskite solar cells.
• Introduced 5-acetylsalicylamide into FA0.95Cs0.05PbI3 precursor ink
• Conducted machine learning screening
• Performed density functional theory calculations
• 5-acetylsalicylamide effectively enhances defect passivation
• Improvement in crystallization control of perovskite layers
• Potential increase in overall solar cell efficiency