UV LEDs go micro

Many applications can be served by the UV LED, including disinfection, sensing, and material processing. For this class of device, sources emitting within the far-UVC at wavelengths below 240 nm are attracting considerable attention, as they have the potential to deactivate pathogens without damaging human skin. However, the uptake of the UV LED is being held back by its efficiency – it is far lower than its siblings that emit visible light.
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