세미나

Perovskite solar cells have gained significant attention as the most promising next-generation solar cells, achieving a remarkable efficiency of 26.7% in small-area devices, comparable to silicon solar cells, within just a decade. In this presentation, I will introduce research focused on improving the efficiency and stability of formamidinium lead triiodide-based perovskite solar cells through composition, surface, and interface engineering. We analyzed the phase stability and defect changes by controlling the composition of the A-site molecules in the ABX3 structure of perovskite. Additionally, we worked on reducing defects by modifying the top and bottom surfaces, where most defects are located. Furthermore, by designing an intermediate layer with atomic-level consistency between the perovskite layer and the electron transport layer, we enhanced electron transport. This presentation will cover various strategies aimed at improving the efficiency and stability of perovskite solar cells.