Reliability of Commercial UVC LEDs: 2022 State-of-the-Art

With this study, we report on the reliability of most recent commercial UVC LED devices. The current COVID-19 pandemic urged development antiviral technologies, and one effective is based irradiation, which can be effectively achieved by means Deep UV LEDs. systems LEDs strongly depends their efficacy reliability. We propose an in-depth analysis four different state-of-the-art suitable for disinfection applications. have been subjected to a controlled stress test near application limits, characteristics analyzed studied. Results indicate still limited reliability, with degradation possibly related increase in Shockley–Read–Hall (SRH) recombination. Finally, some relevant product design suggestions will proposed results work.