Sodium Benzoate Enabled Dual-Functional Defect Engineering for Stable and Broadband Tin-Based Perovskite Photodetectors
Lead-free tin-based perovskites have garnered significant research interest due to their low toxicity and remarkable optoelectronic properties. However, the oxidation of Sn2+ ions remains a critical challenge that hinders their further advancement. In this work, a Na+-containing additive, sodium benzoate (NaBz), is i...