Ammonia Borane All‑In‑One Modification Strategy Enables High‑Performance Perovskite Solar Cells (IMAGE)
Caption
- An all-in-one modification strategy was developed by introducing a multifunctional complex ammonia borane (BNH6) into the buried and upper interfaces simultaneously.
- BNH6 uniquely realizes dual-interfacial defect passivation and iodide oxidation suppression by interacting with SnO2 through hydrolysis, coordinating with Pb2+ and inhibiting the oxidation of I−.
- The optimized perovskite solar cells achieve a champion efficiency of 26.43% (certified, 25.98%) with negligible current density–voltage hysteresis and significantly improved thermal and light stability.
Credit
Jiaxin Ma, Cong Shao, Yirong Wang, Guosheng Niu, Kaiyi Yang, Yao Zhao, Fuyi Wang, Zongxiu Nie, Jizheng Wang*.
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CC BY-NC-ND