What is LIGHT-EMITTING DIODE? What does LIGHT-EMITTING DIODE mean? LIGHT-EMITTING DIODE meaning
Light Emitting Diode (LED) | Plus Two Physics Videos
A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light is determined by the energy required for electrons to cross the band gap of the semiconductor. White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device.