Shed Light on Your Knowledge of Phototransistors

Electroluminescence is the conversion of electrical energy into light. This effect occurs in LEDs when sufficient voltage is applied to the leads, causing electrons to move in one direction across the junction between the p and n regions. The electrons then recombine with the holes and release energy in the form of photons, creating light.

LEDs consume less power and produce less heat than incandescent lamps. They also last longer and have a wide range of applications, from indication lights to consumer electronics.

LEDs can be used in sensor applications, mobile applications, sign applications, automotive uses, LED signals, illuminations, and indicators, among others.

<p>Electrons move across the junction between the p and n regions and recombine with the holes within the device, releasing energy in the form of photons. This effect is called electroluminescence.</p> Signup and view all the answers

<p>The color of the light is determined by the energy band gap of the material.</p> Signup and view all the answers

<p>LEDs consume less power, produce less heat, and last longer than incandescent lamps.</p> Signup and view all the answers