2021-09-03

Stacking Three III-Nitride LEDs

Ohio State University and Sandia National Laboratories in the USA claim the first demonstration of triple-junction cascaded III-nitride light-emitting diodes (LEDs) grown by metal-organic chemical vapor deposition (MOCVD) [Zane Jamal-Eddine et al, Appl. Phys. Express, v14, p092003, 2021]. Stacking LEDs is one way to overcome the limitations in output power density imposed by the effects of efficiency droop at large current density. Tunnel-junction (TJ) structures are used to connect LEDs since they enable electron majority carriers to be transformed to ...
Continue reading

ams OSRAM, a global leader in intelligent sensor and emitter technologies, has filed a patent infringement complaint in the United States against Spider Farmer, a manufacturer of indoor farming luminaires, and has also taken further action bas... READ MORE

Recently, the world’s largest monolithic LED virtual production volume—jointly developed by Absen and Versatile Media—made a high-profile debut, drawing widespread attention across the industry and beyond. As a global leader ... READ MORE