U.S.-Japan research team discovers new transparent conductor material that emits UV light

- Jun 10, 2020-

According to foreign media reports, the Pennsylvania State University of the United States, the University of Minnesota, the University of Tokyo and the Northeastern University of Japan jointly discovered a new type of transparent conductor material that emits UV light, or it can solve the problem of low efficiency of the current UV LED technology.

It is reported that this study was published in the journal "Communications-Physics", titled "SrNbO3 as a transparent conductor in the visible and ultraviolet spectra", and proposed the use of UV transparency Electrode method for developing high-performance UV LEDs.

At this stage, UV LED has been used for sterilization and disinfection, but due to low light efficiency and high cost, UV LED has not yet been commercialized on a large scale. Scientists and industry insiders are still continuing to study ways to improve the performance of UV LEDs to provide sufficient ultraviolet light dose to effectively reduce viruses.

The use of suitable materials is very critical to improve the performance of UV LEDs. The research team of Pennsylvania State University and the University of Minnesota believes that the new transparent conductor materials recently discovered may be a solution to the low efficiency of UV LEDs. The theoretical test results point to strontium niobate materials . Therefore, they further cooperated with researchers from Japanese universities to obtain strontium niobate materials and use sputtering to grow films, and then test the performance of strontium niobate films as UV transparent conductor materials.

The research team pointed out that this research is expected to integrate this new material into UV LEDs at low cost and achieve high quality. Although the original purpose of the research was to provide a solution for water disinfection, they believe that this breakthrough discovery can provide a solution to inactivate the new coronavirus in aerosols (which can be spread in the air-conditioning systems of various buildings) . In addition, other disinfection application areas also include movie theaters, sports arenas and other crowded places and public transportation vehicles such as buses, subways and airplanes. (Compiled by LEDinside Janice)