Constructing Graded Perovskite Homojunctions by Adding Large Radius Phenylmethylamine Ions for Sequential Spin-Coating Deposition Method To Improve the Efficiency of Perovskite Solar Cells

Cs/FA/MA triple cation perovskite films have been well developed in the antisolvent dripping method due to its outstanding photovoltaic and stability performances. This work constructs a quadruple-...