abstract |
The invention relates to an organic/inorganic hybridized perovskite solar battery and a preparation method thereof. The preparation method comprises the following steps: sequentially depositing layers of PbCl2/PbBr2/PbI2, PbCl2/PbI2, PbCl2/PbBr2 or PbBr2/PbI2 through vacuum evaporation, and subsequently soaking in a CH3NH3I solution so as to obtain a CH3NH3I.PbCl2/CH3NH3I.PbBr2/CH3NH3I.PbI2 perovskite layer, a CH3NH3I.PbCl2/CH3NH3I.PbI2 perovskite layer, a CH3NH3I.PbCl2/CH3NH3I.PbBr2 perovskite layer or a CH3NH3I.PbBr2/CH3NH3I.PbI2 perovskite layer for substituting the conventional perovskite layer made of a single material. Due to the overlapped structure, the sunlight can be effectively absorbed, and the transition of electrons can be improved. |