Preparation device and preparation method of large-area perovskite solar cell

Abstract

The invention provides a preparation device and a preparation method of a large-area perovskite solar cell. The device sequentially comprises an FTO scribing P1 module, an electron transport layer coating module, an infrared radiation module, an electron transport layer cooling module, a perovskite precursor solution slit coating module, a perovskite wet film reduced pressure distillation module,a composite optical wave annealing module, a perovskite layer cooling module, a hole transport layer coating module, a hole layer blow-drying module, a mechanical scribing P2 module, an electrode evaporation module and a mechanical scribing P3 module, wherein the perovskite wet film reduced pressure distillation module comprises a cavity, a first transmission door, a second transmission door, a pneumatic piston and multiple groups of parallel booster pump devices; the first transmission door and the second transmission door are arranged on the two sides of the cavity respectively, and are usedfor an FTO glass carrier to pass through; the pneumatic piston is hermetically connected with the cavity; and the multiple groups of parallel booster pump devices communicate with the cavity. According to the preparation device and the preparation method, a wet film can be treated, and the large-scale production of the perovskite solar cell can be realized.

Description

technical field [0001] The invention relates to the technical preparation field of solar cells, in particular to a large-area perovskite solar cell preparation device and a preparation method. Background technique [0002] The photoelectric conversion efficiency of perovskite solar cells has risen from 3.8% to 24.2% in 10 years, which has the value of industrialization. However, most of the preparation methods of perovskite solar cells in the current experiment, especially the photoelectric conversion efficiency exceeds 20%. % of the perovskite solar cell preparation methods are mostly one-step anti-solvent method, two-step spin coating method, etc. However, the spin coating method cannot achieve large-scale production. Some large-area perovskite preparation methods, such as CVD, slit coating, doctor blade coating, and solution extrusion, have been developed. Although these methods can achieve large-area perovskite films, their film quality Still lower than the spin coating...

AI Technical Summary

Problems solved by technology

[0002] The photoelectric conversion efficiency of perovskite solar cells has risen from 3.8% to 24.2% in 10 years, which has the value of industrialization. However, most of the preparation methods of perovskite solar cells in the current experiment, especially the photoelectric conversion efficiency exceeds 20%. % of the perovskite solar cell preparation methods are mostly one-step anti-solvent method, two-step spin-coating method, etc. However, the spin-coating method cannot achieve large-scale production

Some large-area perovskite preparation methods, such as CVD, slit coating, doctor blade coating, and solution extrusion, have been developed. Although these methods can achieve large-area perovskite films, their film quality Still lower than the spin coating method, for example, the CVD method has high requirements for precise and controllable film growth, and the solution-based coating method, the wet film cannot use anti-solvent to promote crystallization in a large area. Therefore, there is currently a lack of large-scale Production methods and corresponding equipment

[0003] The prior art provides a scraping coating equipment and a thin film preparation method applied to the preparation of perovskite batteries, which can be used to prepare large-area thin films or layered structures; the prior art also provides a flexible coating based on a roll coating process. A preparation method for large-area perovskite solar cells, which realizes the preparation of flexible large-area perovskite solar cells by adjusting the roll coating process; however, the above two preparation methods do not address the key issue of how to deal with the wet film after coating. and

The prior art also provides a device for preparing the perovskite layer, which uses a vacuum buffer tank to achieve rapid vacuum. Although the pressure can be reduced rapidly and the film quality can be improved, according to the ideal gas equation, if the atmospheric pressure is reduced to 10Pa, The buffer tank must be at least 10,000 times larger than the volume of the vacuum chamber. It takes a long time to evacuate such a huge buffer tank to the order of 10Pa, which is obviously not suitable for industrial production.

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