Organic-inorganic hybrid perovskite solar cell (PSC) is a third-generation photovoltaic technology[1,2],and the certi-fied power conversion efficiency (PCE) has reached 25.5％(https://www.nrel.gov/pv/cell-efficiency.html),which can rival solar cells based on crystalline-Si and other inorganic semi-conductors.The intrinsic instability of perovskite materials could impede PSC commercialization[3].To date,a variety of strategies such as composition engineering,additive engi-neering,interface engineering and encapsulation technique are employed to improve the long-term stability of PSCs[4-9].In particular,fullerene materials with high electron mobility,high electron affinity,small reorganization energy and ad-justable energy level have been widely utilized as interfacial layers or additives in PSCs for efficiency and stability improve-ment[10].Among them,fluorinated and crosslinkable fullerene derivatives can improve the stability of PSCs effectively.The fluorinated fullerene derivatives could improve the mois-ture stability because of the hydrophobicity of fluorine atom.The crosslinked fullerene derivatives can protect the electron-transport layers (ETLs) against solvent erosion during per-ovskite solution deposition,and the as-formed organic net-works can improve mechanical stability of PSCs.