Researchers from Zhejiang University and Zhejiang Aiko Solar Energy Technology have achieved a certified 33.15% power conversion efficiency in perovskite–silicon tandem solar cells. The study, published in Nature Communications, addresses efficiency losses caused by iceberg-like pyramids over 2 μm on industrially textured silicon surfaces. These large structures hinder uniform hole-selective layer deposition and high-quality perovskite coating, increasing contact losses. Zhejiang University has said that silica nanospheres were used to create localized submicron contacts, enabling complete solution-processed perovskite coverage on the textured surfaces. This architecture has reduced interfacial recombination losses and has improved charge carrier transport, leading to higher performance. Zhejiang Aiko Solar Energy Technology has confirmed that the tandem devices have also demonstrated enhanced stability, indicating a scalable method for industrial adoption in high-efficiency photovoltaic manufacturing.