Advancements in Blue and Deep Ultraviolet LEDs

This lecture discusses the development of blue LEDs and deep ultraviolet LEDs, highlighting the importance of collaboration between academia, industry, and government. The instructor begins by tracing the history of artificial lighting, identifying LEDs as the fourth generation. He details the challenges faced in the commercialization of blue LEDs, particularly the difficulties in growing high-quality gallium nitride crystals. The lecture emphasizes the pivotal role of innovative growth methods and partnerships that led to breakthroughs in LED technology. The instructor shares personal experiences from his academic journey, including the transition from industry to university research. He also addresses the environmental impact of LED technology, noting its efficiency compared to traditional lighting. The discussion extends to the emerging market for deep ultraviolet LEDs, which have applications in water purification and sterilization. The lecture concludes with insights into future developments in optical communication systems and the establishment of a new research center focused on future electronics.