Chinese Researchers Achieve 27.3% Efficient Perovskite Solar Cells

⚡ AI Executive Summary

Researchers at Soochow University have developed an inverted perovskite solar cell design using a dual-molecule interface layer that significantly improves performance. The approach coassembles two carbazole-based compounds at the perovskite-transport layer boundary to suppress defects, enhance charge extraction, and boost stability. For the broader solar industry, this advancement demonstrates that interface engineering remains a powerful lever for pushing perovskite efficiency closer to silicon's practical limits, while the reported 35-day outdoor stability test addresses a critical concern for commercialization. The 27.3% single-cell efficiency and successful large-area scaling suggest perovskites are maturing from laboratory curiosities toward grid-relevant deployment, particularly for building-integrated and tandem applications where traditional silicon reaches its architectural constraints.