| abstract |
A preparation method of perovskite material powder, the main steps of the method are as follows: mix components 1 and 2 materials, dissolve them in good solvent A, fully stir and filter to obtain a mixed precursor solution; Anti-solvent B is added to the medium, and the mixture is rapidly stirred until the precipitation of perovskite microcrystals is formed; finally, the precipitation is washed and dried in vacuum to obtain the perovskite material powder. The preparation method of the present invention can use low-purity raw materials to synthesize perovskite material powder with high purity and no impurity phase, which can be used for the preparation of various high-efficiency thin-film devices; Quantitative industrial synthesis. |