Question
How led works
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LED stands for Light Emitting Diode. It works by electroluminescence, a process in which light is emitted from a material when an electric current is passed through it.
The main component of an LED is a semiconductor material called a diode. A diode consists of two layers of semiconductor material, one with an excess of electrons (n-type) and the other with a deficit of electrons (p-type). When a voltage is applied across the diode, electrons from the n-type layer are pushed into the p-type layer and recombine with "holes" (positively-charged spaces) in that layer.
During this recombination process, the excess energy of the electrons is released in the form of light photons. The color of the emitted light depends on the energy bandgap of the semiconductor material. Different semiconductor materials can be used to produce different colors of light.
To enhance the efficiency of the LED, the semiconductor material is typically doped with other elements to control the flow of electrons and increase the light output.
LEDs are highly efficient compared to traditional incandescent bulbs because they convert most of the energy into light rather than heat. They also have a longer lifespan and are more durable due to their solid-state nature. LED technology has revolutionized the lighting industry by providing energy-efficient and versatile lighting solutions.
The main component of an LED is a semiconductor material called a diode. A diode consists of two layers of semiconductor material, one with an excess of electrons (n-type) and the other with a deficit of electrons (p-type). When a voltage is applied across the diode, electrons from the n-type layer are pushed into the p-type layer and recombine with "holes" (positively-charged spaces) in that layer.
During this recombination process, the excess energy of the electrons is released in the form of light photons. The color of the emitted light depends on the energy bandgap of the semiconductor material. Different semiconductor materials can be used to produce different colors of light.
To enhance the efficiency of the LED, the semiconductor material is typically doped with other elements to control the flow of electrons and increase the light output.
LEDs are highly efficient compared to traditional incandescent bulbs because they convert most of the energy into light rather than heat. They also have a longer lifespan and are more durable due to their solid-state nature. LED technology has revolutionized the lighting industry by providing energy-efficient and versatile lighting solutions.