A method for manufacturing a perovskite thin film layer is provided. The method includes heating the perovskite film layer with a heat source for a heating time, cooling the perovskite film layer to room temperature, which is 20°C to 28°C. During the passivation treatment time, the perovskite thin film layer is exposed to infrared radiation, so that the perovskite thin film layer forms a passivated perovskite thin film layer. Accordingly, a small amount of organic matter on the surface of the perovskite film layer is affected to generate passivation materials, thus the stability of the perovskite film layer is improved, and the photoelectric conversion efficiency of the perovskite film layer is enhanced. The present invention further provides a perovskite solar cell, which
includes the perovskite thin film layer after the aforementioned treatment. |