Manipulating Buried Interface via Aromatic Amino Acid Derivatives for Wide-Bandgap Perovskite Solar Cells and Tandem Devices.

Key Points

• The aim is to enhance the performance of wide-bandgap perovskite solar cells by modifying interfaces using aromatic amino acid derivatives.
• Integrated NBP-modified wide-bandgap sub cell with 1.25 eV NBG sub cell to construct tandem solar cells.
• Evaluated power conversion efficiency (PCE) and photostability through maximum power point tracking.
• Measured performance after 1000 hours of tracking.
• Achieved a PCE of 29.05% in the two-terminal tandem solar cells.
• Maintained 85.3% of initial PCE after 1000 hours of testing.
• Demonstrated significant improvement in device photostability.