A dual PO group additive and anti-solvent synergistic strategy enables efficient and stable quasi-2D red perovskite LEDs

Efficient and stable quasi-2D red PeLEDs were achieved by adopting an anti-solvent/dual PO additive synergistic strategy. The EQE max and T 50 of the optimized PeLED were 5.25 and 4.92 times those of the control device, respectively.