[19a-432-1~12] 12.5 Organic solar cells

▼ [19a-432-4] High efficient perovskite solar cells via two-steps growth approach of perovskite film

〇(D)Yang Fengjiu¹, Liu Jiewei², Miyauchi Yuhei¹, Wakamiya Atsushi², Matsuda Kazunari¹ (1.Inst. of Adv. Energy for Kyoto Univ., 2.Inst. of Chem. Res. for Kyoto Univ.)

Keywords:perovskite soalr cells, high efficiency, anti-humidity

We successfully achieved high efficient perovskite solar cells by employing two-step growth of perovskite crystals, including the Cs_0.05(MA_0.17FA_0.83)_0.95Pb(I_0.83Br_0.17)₃ was designed as main photo-active layer and removed too excess PbI₂ of perovskite film surface by halide solutions, respectively. The anti-humidity stability of perovskite solar cells has also improved to 76.1% compared with the without treated device under humidity of about 60.0%.