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Tag Archives: Light emitting diodes

LED guide: How LEDs work

LED guide: How LEDs work

A light-emitting diode (LED) is a two-leadsemiconductor light source. It is a p?n junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is calledelectroluminescence, and the color of the light (corresponding to the ...

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Manufacturing process LEDs & emitting principle

Manufacturing process LEDs & emitting principle

By Ella Bhat, BizLED Bureau September 4, 2014: Light emitting diodes (LEDs) is a semiconductor device that can produce light from electric current. When it is correctly polarised, the diode emits photons (light) by recombining electrons and holes in the material while electric current is flowing. When an electron goes through the layer of a semiconductor material, stimulating it, it ...

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