Acceleration of radiative recombination for efficient perovskite LEDs Abstract The increasing demands for more efficient and brighter thin-film light-emitting diodes (LEDs) in flat-panel display and solid-state lighting applications have promoted research into three-dimensional (3D) perovskites. These materials exhibit high charge mobilities and low quantum efficiency droop 1–6 , making them promising candidates for achieving efficient LEDs with enhanced brightness. To improve the efficiency of...