A light-emitting diode

A light-emitting diode

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A light-emitting diode

(Summary description)A light-emitting diode

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  • Time of issue:2020-05-29
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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, relaeasing energy in the form of photons,The color of the light (corresponding to the energy of the photons)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 phophor on the semiconductor device.


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