Congratulations to Chaohui for receiving the SAOT Student Award in 2026!
Chaohui has been honored by the SAOT Executive Committee with a SAOT Student Award 2026 for his contribution: Anchoring ligand engineering enables highly stable MA-free perovskite solar cells with a minimal VOC deficit of 0.32 V published in Energy Environ. Sci., 2025,18, 7660-7668.
“The central idea of our work is simple: stabilize the perovskite/ETL interface by molecular anchoring. We introduced triphenylphosphine oxide (TPPO) as an anchoring ligand, which passivates uncoordinated Pb²⁺, reduces surface trap density by 28‑fold, and suppresses bidirectional migration of I⁻ and Ag⁺. This yields MA‑free perovskite solar cells with a champion efficiency of 26.01%, a record‑low Voc deficit of only 0.32 V, and 90% efficiency retention after 1200 hours of continuous operation.
