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Light Emitting Diode-LED
May 21, 2018

The light emitting diode is called LED. It is made from compounds containing gallium (Ga), arsenic (As), phosphorus (P) and nitrogen (N).

When electrons and holes are combined, they can radiate visible light, so they can be used to make light-emitting diodes. In the circuit and instrument as an indicator light, or form a text or digital display. Gallium arsenide diode emitting red light, phosphide diode green light, silicon carbide diode yellow, Gan blue diode emitting blue light. Because of its chemical properties, it is divided into organic light-emitting diode OLED and inorganic light emitting diode LED.