Enhancing the Performance of 2D Tin‐Based Pure Red Perovskite Light‐Emitting Diodes through the Synergistic Effect of Natural Antioxidants and Cyclic Molecular Additives

film. This synergistic effect greatly improves the performance of 2D red Sn-based PeLED, with a maximum external quantum efficiency of 1.87% (≈9 times that of the pristine device), a purer color, and better bias stability. This work demonstrates the potential of the dual-additive approach in enhancing the performance of 2D Sn-based PeLEDs, while the use of these environmentally friendly additives contributes to their future sustainability.