Abstract: The present disclosure relates to a rhythmic deposition production method and equipment of a perovskite thin film. The method includes the followings: a to-be-deposited substrate pre-prepared with a precursor BX2 thin film containing a perovskite precursor BX2 material is placed into a deposition-reaction chamber for evaporating and depositing a precursor AX material; the deposition is suspended after a period of time such that the precursor AX material deposited on a surface of the precursor BX2 thin film has sufficient time to diffuse into the precursor BX2 thin film so as to form a perovskite ABX3 crystal; after a period of suspension, deposition is performed again, such that the deposition and suspension processes are alternately repeated rhythmically and the AX material enters the BX2 thin film to fully react with the BX2 material, so as to obtain an ABX 3 perovskite crystal without BX2 material residual or with AX material surplus, until a perovskite ABX3 thin film with a set thickness is obtained.

Abstract: Disclosed are a solar cell cutting and passivation integrated processing method and a solar cell prepared using the method. The solar cell includes a substrate (1), a front electrode layer (2), a light absorption layer (3) and a back electrode layer (4) from bottom to top. Before laser structured cutting is performed for the back electrode layer (4), a protective layer (5) is disposed on a surface of the back electrode layer (4), and then laser structured cutting is performed for the back electrode layer (4), or the back electrode layer (4) and the light absorption layer (3) simultaneously through the protective layer (5) to obtain a corresponding structured trench (P3) while the protective layer (5) is kept from being cut by laser, and a material of the protective layer (5) is partially molten due to a localized high temperature generated by the laser processing in a laser structured cutting process and infiltrates into an underlying corresponding structured trench (P3).

Abstract: The invention relates to an apparatus for immersion-based preparation of a perovskite thin film, including a sealed cavity (1).

Abstract: Provided is a device for improving perovskite film formation uniformity, including a grinder and a sheeter, wherein the grinder grinds a perovskite precursor into a powder, the sheeter presses the ground precursor powder into a precursor sheet, the sheeter includes a mold for pressing the precursor powder and a heating device, and the heating device heats a lower mold. A method of using the above device for improving perovskite film formation uniformity, and a method of preparing a perovskite solar cell are also provided. The precursor sheet prepared herein not only solves the problems of uneven particle size and uneven spreading at the bottom of the evaporation source or incomplete coverage, but also prevents splashing during vacuuming and aeration, and meanwhile, since the precursor powder is compacted, it is more conducive to the uniform conduction of heat during the heating and evaporation process, thereby improving the heat energy use efficiency.

Abstract: The present disclosure relates to perovskite thin film low-pressure chemical deposition equipment and a usage method thereof, and application of the usage method.

Abstract: The present disclosure relates to perovskite thin film low-pressure chemical deposition equipment and a usage method thereof, and application of the usage method.