Enhancing the Performance of Perovskite Solar Cells Through Antioxidant Incorporation

Perovskite solar cells have emerged as a promising solar technology for generating electricity, but their long-term stability remains a significant challenge. The defects in the bulk of the perovskite absorbing layers, at grain boundaries and interfaces, contribute to the performance degradation over time. To address this issue, the passivation of defects using dopants has gained considerable attention. In this study, we explore the effect of antioxidants, specifically
$\beta$
-Carotene and Quercetin, on the stability of Cs
0.1
FA
0.9
PbI
3
perovskite absorbing layer. Time-resolved photoluminescence measurements were utilized to assess the impact of the antioxidants on the photocarrier lifetime. Our results showed that the addition of optimized concentration of antioxidants improves the performance of perovskite layer and increases the photocarrier lifetime up to three times.