Light-Emitting Principal of LEDs

A light-emitting diode (LED) is a p-n junction diode that emits light when forward current passes through the p-n junction of compound semiconductor layers.　When forward current passes through an LED, the injected carrier electrons move and recombine with holes, causing a difference in the band-gap energy between the materials forming the p-n junction to be released in the form of light.

What is the light-emitting principle of led lights?

Basic Knowledge of Discrete Semiconductor Device, Toshiba Electronic Devices & Storage Corporation

Light Emitting Diode : Construction, Circuit, Working & Its

How Does a 5mm LED Work? - LEDSupply Blog

Basic Knowledge of Discrete Semiconductor Device - Toshiba Electronic Devices & Storage Corporation - Asia-English, PDF, Mosfet

Light-emitting diode - Wikipedia

Light Emitting Diode (LED) Working Principle

How to Use a Photocoupler “Input Current”, Toshiba Electronic Devices & Storage Corporation

Basic Knowledge of Discrete Semiconductor Device - Toshiba Electronic Devices & Storage Corporation - Asia-English, PDF, Mosfet