International Display Workshops General Incorporated Association

11:20 〜 11:40

[PRJ5-3(Invited)] Energy Efficiency Comparison of GaN-based Blue Light Emitters

*Joachim Piprek1 (1. NUSOD Institute LLC (United States of America))

InGaN/GaN, light-emitting diode, super-luminescent LED, laser diode, energy efficiency

https://doi.org/10.36463/idw.2020.0674

GaN-based blue light-emitting diodes (LEDs) can reach more than 80% electrical-to-optical power conversion efficiency, but less than 10% are reported for blue super-luminescent LEDs and less than 50% for blue laser diodes. We employ advanced device simulation to investigate the physical mechanisms behind the measured discrepancy in peak energy efficiency.