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  • Wang, Huijia; Tian, Jianhua; Jiang, Kejian; Zhang, Yu; Fan, Haochen; Huang, Jinhua; Yang, Lian-ming; Guan, Bo; Song, Yanlin

    2017-September-11, Volume: 7, Issue: 69
    Journal Article

    Methylammonium bismuth iodide (MA 3 Bi 2 I 9 ) perovskite, has been deposited on a mesoporous TiO 2 film with high homogeneousity and coverage through interdiffusion of solution-processed BiI 3 /CH 3 NH 3 I stacking layers, resulting in higher power conversion efficiency in the perovskite solar cell as compared with that prepared using a conventional one-step solution method. Methylammonium bismuth iodide (MA 3 Bi 2 I 9 ) perovskite has been deposited on a mesoporous TiO 2 film through interdiffusion of solution-processed BiI 3 /CH 3 NH 3 I stacking layers, and the resulting device was prepared and characterized.