Researchers from the University of Cambridge in the UK, the University of Oxford in the UK, and Ludwig-Maximilans University in Germany have demonstrated a new form of perovskite, and applied the material to make high-brightness LEDs. The material is an organometal halide perovskites. The researchers designed the diode structure to confine electrical charges into a very thin layer of the perovskite, which sets up conditions for the electron-hole capture process to produce light emission. The perovskite LEDs are made using a simple scalable process in which a perovskite solution is prepared and spin-coated onto the substrate. The process does not require high temperature heating steps, a high vacuum, or complex purification procedures. The first commercially-available LEDs based on perovskite could be available within five years.
Source: University of Cambridge
