Enhanced Hole‐Injecting Interface for High‐Performance Deep‐Blue Perovskite Light‐Emitting Diodes Using Dipole‐Controlled Self‐Assembled Monolayers

The Blue electroluminescence (EL) with high brightness and spectral stability is imperative for full-color perovskite display technologies meeting the Rec. 2020 standard. However, deep-blue perovskite light-emitting diodes (PeLEDs) lag behind their green- or red-emitting counterparts in brightness, quantum efficiency, and operational stability. Additionally, the Cl