Weakly Confined Perovskite Nanocrystal Films for Energy-Efficient Electroluminescence Devices.
High wall-plug efficiency (WPE) and long-term operational stability are major hurdles for perovskite light-emitting diodes (PeLEDs) toward low-power practical applications. This work presents high-WPE PeLEDs utilizing in situ fabricated weakly confined perovskite nanocrystal films with boosted stability. Reducing the p...