Here we need to mention a Nobel Prize winner - Dr. Xiuji Nakamura. He invented the blue LED, which also laid a certain foundation for the white LED. Based on this important contribution, he was awarded the Nobel Prize in physics in 2014.
As for how blue LEDs are converted into white LEDs, the reason for the large Z is that there is an extra layer of phosphor in the wafer.
The basic light-emitting principle has not changed much: between the two layers of semiconductors, electrons and holes collide and recombine and generate blue photons in the light-emitting layer.
Some of the generated blue light will be directly emitted through the fluorescent coating; The remaining part will hit the fluorescent coating and interact with it to generate yellow photons. Blue photons and yellow photons interact (mix) to produce white light.
At present, the application range of LED lamps is very common. Take xinshengkai optoelectronics as an example, the LED lamp strips produced by xinshengkai optoelectronics are widely used in indoor and outdoor decoration, street view layout, jewelry counters, gardens, cars, pools, advertising signs, hotels, shopping malls, KTVs, leisure places, etc. compared with traditional lighting tools, LED lamps appear more modern and fashionable, and are indispensable decorative items in modern life.
