New transparent conductor materials are expected to achieve high performance UV LED
The research was published in the journal communication physics with the title of "srnbo3 as a transparent conductor in the visible and ultraviolet spectrum". It proposed a method of developing high-performance UV LEDs using UV transparent electrodes.
At present, UV LEDs have been used for sterilization and disinfection, but due to the problems of low light efficiency and high cost, UV LEDs have not been commercialized on a large scale. Scientists and insiders are still studying ways to improve the performance of UV LEDs to provide sufficient UV dose and effectively reduce viruses.
The use of suitable materials is very critical to improve the performance of UV LEDs. The research teams of Penn State University and the University of Minnesota believe that the recently discovered new transparent conductor materials may be a way to solve the low efficiency of UV LEDs. The theoretical test results point to strontium niobate materials. Therefore, they further cooperated with researchers from Japan University to obtain strontium niobate materials and grow thin films by sputtering, and then tested the performance of strontium niobate thin 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 initial purpose of the study was to provide solutions for water disinfection, they believed that this breakthrough discovery could provide a solution to inactivate novel coronavirus in aerosols (which can spread in the air-conditioning systems of various buildings). In addition, other disinfection applications also include crowded places such as cinemas and sports arenas, as well as public transport vehicles such as buses, subways and planes.
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