Blue perovskite LEDs get an efficiency boost

Perovskites, known for their potential use in solar cells, also hold promise for making low-cost, flexible light-emitting diode panels for lighting and displays. One hurdle that perovskite LEDs face is that blue-light-emitting devices have lagged behind their red and green counterparts in terms of efficiency, and all three colors are crucial for displays and white light. Now, by combining perovskite nanoparticles with 2-D perovskites, researchers have doubled the efficiency of blue LEDs