| abstract |
The invention discloses a laminated perovskite solar cell and a preparation method thereof, belonging to the technical field of solar cell devices. It includes a high-transparency glass layer, a transparent electrode layer, a hole transport layer, a first perovskite active layer, a first electron transport layer, a multifunctional tin oxide layer, and a second perovskite active layer that are sequentially connected to form an integral solar device. , a second electron transport layer and a metal counter electrode layer; the thickness of the multifunctional tin oxide layer is 10-50 nm, and the diameter of the tin oxide nanoparticles in the multifunctional tin oxide layer is 5-20 nm. The narrow-bandgap perovskite solar cell is used as the bottom cell and the wide-bandgap perovskite solar cell is used as the top cell to form a composite tandem cell structure. The charge transport layer was replaced with a thin film of tin oxide nanomaterials. On the premise of obtaining high-performance solar cells, the structure and manufacturing process are simplified, and the cost and energy consumption are greatly reduced. |