High-performance UVC LEDs with Transparent P-Ohmic Contact Layers: Technology and Applications
Date & Time
Tuesday, August 24, 2021, 2:00 PM - 2:30 PM
Achieving a P-type ohmic contact layer that is both transparent to the quantum well emission and simultaneously exhibiting low forward voltage is a critical milestone in the development of deep ultraviolet light-emitting diodes (LEDs). Packaged single-chip 270 nm LEDs with 200mW optical power and low forward voltage at 350mA had been demonstrated. This development paves the way for future UVC LEDs with above 40% wall-plug efficiencies. Rapid inactivation of pathogens such as flu and coronavirus can be achieved with such emitters, making them essential tools for future pandemic prevention.
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