LED UV is widely used
The so-called deep ultraviolet light refers to ultraviolet light with a wavelength shorter than 280 nanometers. This light source can play a unique role in the fields of water and air purification, disease treatment, and information technology.
However, for a long time, limited by the intrinsic characteristics of high aluminum nitride and the preparation process, the efficiency of extracting deep ultraviolet light from the light-emitting diode is very low, which means that the part of electricity converted into usable light is very small, resulting in
The loss of "light energy" greatly restricts the wider application of deep ultraviolet light-emitting diodes
