AlGaN Ultraviolet Micro-LEDs

AlGaN-based UV LEDs have proven to broad applications in many fields including sterilization, disinfection, purification, and phototherapy, but the performance still needs be further improved. Benefiting from advantages such as better current spreading, lower self-heating effect higher light extraction efficiency achieved by reduced LED size, micro-LEDs are expected improve quantum thus can expand more potential applications. In this article, enhancement techniques of will reviewed, providing an outlook for development UV-LEDs. The micro-LED format offers possibilities address fundamental issues that confront general, also demonstrates specific characteristics opening up new areas application high-speed optical communication, time-resolved fluorescence lifetime measurement, pumping, direct writing charge management.