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SHENZHEN YGHQ Optoelectronics Co.,ltd.

[Guangdong,China]

Business Type:Manufacturer

Main Markets: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide

Exporter:71% - 80%

Certs:RoHS
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SHENZHEN YGHQ Optoelectronics Co.,ltd.

Phosphors of multiple colors on ultraviolet LED chip.

August 28, 2023

0807 Led 07 Jpg

5730 Led 8 Jpg

Led9 Jpg

Applying three primary colors or a plurality of colors of phosphor on the violet or ultraviolet LED CHIP, and using the long-wave ultraviolet light (370 nm-380 nm) or violet light (380 nm-410 nm) emitted by the chip to excite the phosphor to realize white light emission, the method The color rendering is better, but there are also problems similar to the second method, and the red and green phosphors with higher conversion efficiency are mostly sulfide systems, and such phosphors have poor light-emitting stability and large light decay. It has become an urgent task to develop high-efficiency, low-light-emitting phosphors for white LEDs.

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