▎ 摘　　要

NOVELTY - The method for optimizing the performance of trans-type perovskite solar cells, involves: (S1) using deionized water, acetone, ethanol and isopropanol to clean the transparent electrode substrate in sequence, drying the cleaned substrate, and treating it with plasma equipment for 5-10 minutes; (S2) weighing the poly(triaryl amine) (PTAA) powder and dissolving it in the pyridine solution to prepare the PTAA pyridine solution, where the prepared PTAA pyridine solution is heated at 80° C and protected from light to obtain a clear solution, and carrying out annealing treatment of 5-10 minutes to obtain a PTAA film; (S3) weighing lead iodide, lead bromide, cesium iodide or formamidinium iodide, and adding them into the dimethylformamide/dimethyl sulfoxidemixed solvent to prepare the perovskite precursor solution, and putting the perovskite precursor solution in the PTAA, spreading on the film, and treating at 100-150° C for 10-15 minutes to obtain a perovskite film. USE - Method for optimizing the performance of trans-type perovskite solar cells. ADVANTAGE - The method can obtain a PTAA film with better uniformity under low temperature conditions, simultaneously passivate the defect states on the surface of the perovskite, increase the effective point and transmission, and reduce the stress of the perovskite film, which is effective It is beneficial to improve the photoelectric conversion efficiency and stability of perovskite cells. DETAILED DESCRIPTION - The method for optimizing the performance of trans-type perovskite solar cells, involves: (S1) using deionized water, acetone, ethanol and isopropanol to clean the transparent electrode substrate in sequence, drying the cleaned substrate, and treating it with plasma equipment for 5-10 minutes; (S2) weighing the poly(triaryl amine) (PTAA) powder and dissolving it in the pyridine solution to prepare the PTAA pyridine solution, where the prepared PTAA pyridine solution is heated at 80° C and protected from light to obtain a clear solution, and carrying out annealing treatment of 5-10 minutes to obtain a PTAA film; (S3) weighing lead iodide, lead bromide, cesium iodide or formamidinium iodide, and adding them into the dimethylformamide/dimethyl sulfoxidemixed solvent with a volume ratio of 3:1 to prepare the perovskite precursor solution, and putting the perovskite precursor solution in the PTAA, spreading on the film, and treating at 100-150° C for 10-15 minutes to obtain a perovskite film; and (S4) sequentially depositing an electron transport layer, a hole blocking layer, and an electrode layer on the perovskite thin film.