LEDs and OLEDs - How it Works, Inventors

All about Light Emitting Diodes and Organic LEDs. How they work, the difference between them. We go to the Moser Baer lab to look at OLEDs under review. Learn about the inventors of the lights at the end of the program. LEDs use pn junctions where holes and free electrons combine to form a photon at the boundary between the p and n type materials. The OLED uses thin organic (molecule with carbon) layers evaporated or deposited on a flat substrate material. The LED was invented in 1961 at Texas Instruments and the first OLED was developed at Kodak in the 1980s.