Efficient defect passivation via a branched ammonium salt for 20.46%-efficiency semi-transparent wide-bandgap perovskite solar cells

Key Points

• The study shows that defect passivation significantly improves efficiency in perovskite solar cells.
• Efficiency reached 20.46%, reflecting a notable enhancement in solar cell performance.
• The approach utilized branched ammonium salt for effective defect passivation in the materials used.
• This work highlights the potential for higher-efficiency solar cells, but further validation in real-world settings is needed.