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Improved film morphology of (CH₃NH₃)₃Bi₂I₉ via cation displacement approach for lead-free perovskite solar cells

Methylammonium bismuth iodide (MA₃Bi₂I₉) has been recently investigated as a light absorber in lead-free perovskite solar cells. However, the MA₃Bi₂I₉ film fabricated via conventional one-step spin coating method...

Fengzhu Li, Haochen Fan, Pengcheng Wang, **angjun Li… in Journal of Materials Science (2019)