Preparation method of perovskite solar cell with perovskite layer passivated by nanofibers
A technology of solar cells and nanofibers, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low efficiency and poor stability of perovskite cells, and achieve improved photoelectric conversion efficiency, improved performance, and controllable dimensions Effect
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[0023] First, the nanofibers are processed by the mass fraction of 10% by weight of polyacrylonitrile / N, N-dimethylformamide solution processed by electrostatic spinning technology to polymer nanofibers, and the electrospinning parameters are as follows: 1 nozzle and negative high pressure generator Connection, the negative high voltage value is -5 kV; 2 between the nozzle and the receiving plate is 15cm; 3 The receiving plate is connected to the positive high voltage generator, the positive high pressure is + 10 kV; 4 The feed speed is controlled by the pump, the feed speed is 1.0 Ml · h -1 To obtain polymer nanofibers. Then, the polymer nanofibers were held at 240 ° C for 60 minutes under the air atmosphere, and the nitrogen gas was attached to 800 ° C, and the temperature was held in a nitrogen atmosphere for 60 minutes, cooling, and finally nanofibers were obtained. Among them, the rate of temperature and cooling is 5 ° C per minute.
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