Recently, the research team led by Professor Li Chongwen from the School of Electronic Science and Engineering at Southeast University has made a significant breakthrough in the realm of perovskite/silicon tandem solar cells. Their pertinent research results were published in Nature Photonics, under the title "Towards Efficient, Scalable, and Stable Perovskite/Silicon Tandem Solar Cells".

This study centers on three fundamental challenges facing tandem solar cells: boosting efficiency, ensuring long-term stability, and enabling large-scale production. It offers a systematic analysis of the existing technological bottlenecks and puts forward strategies like optimizing interface materials and minimizing optical/electrical losses to facilitate industrialization.

The team notes that although the efficiency of laboratory-scale devices has neared 35%, there remains a notable gap when compared to the theoretical maximum. Crucial issues such as material stability, tolerance to reverse bias conditions, and phase separation in wide-bandgap perovskites must be tackled.

Furthermore, the study underscores the pivotal role of innovative solutions—including deposition techniques that align with industrial standards, functional self-assembled monolayers, and non-fullerene acceptors—in bolstering device reliability.