Performance limiting defect stabilization by orbital hybridization in perovskite/C 60 based solar cells

Key Points

• The aim is to understand how C60 affects defect stabilization and overall efficiency in perovskite solar cells.
• Analyzed the impact of C60 as an electron transport layer (ETL) on perovskite surfaces.
• Measured photoluminescence quenching and open-circuit voltage (V OC) degradation.
• Evaluated device efficiency based on these parameters.
• C60 increased defect densities on perovskite surfaces.
• Significant photoluminescence quenching was observed.
• V OC degradation negatively impacted device efficiency.