講演情報
[9p-P06-7]A systematic investigation of PVDF-HFP in perovskite solar cells for improved space mission reliability
〇PeiYu Chen1, Seoungjun Ahn1, WeiHao Chiu1, KunMu Lee1 (1.Chang Gung Univ.)
キーワード：
perovskite solar cells、PVDF-HFP、Space environment
Metal halide perovskites, with their outstanding power conversion efficiency (PCE), power-toweight ratio and radiation tolerance, position perovskite solar cells (PSCs) as an ideal choice for future space photovoltaic applications.In this study, we integrated poly(vinylidene fluoride-cohexafluoropropylene) (PVDF-HFP) as an additive into the perovskite composition. The fluorine content in PVDF-HFP forms strong hydrogen bonds with the perovskite’s organic cations and coordination bonds with Pb2+ ions, facilitating effective defect mitigation within the perovskite matrix and enhancing both the efficiency and stability of PSCs. Compared to pristine devices with a PCE of 19.85%, PVDF-HFP PSCs achieved a significant increase in PCE to 22.54%.Demonstrating strong resilience, PVDF-HFP PSCs retained 70% of their initial PCE after 600 hours under vacuum conditions (2×10-7 torr) and 60% after exposure to 200 krad gamma-ray irradiation. These results indicate that PVDF-HFP as an additive significantly enhances the stability and performance of PSCs in harsh space environments.