Cubic III-nitride active layer with 32% internal quantum efficiency; goal is to triple efficiency of white light emitting diodes

https://phys.org/news/2024-01-green-gap-cubic-iii-nitride.html

">6X higher efficiency green LEDs synthesizing low defect density, high quality, single phase cubic III-nitride gallium using aspect ratio phase trapping... defects, as well as the undesirable hexagonal phase, are trapped inside the grooves so that the surface of the active layer is a perfect cubic-phase material... droop-free green LEDs with a 32% IQE and only 16% indium content. This is the highest reported IQE for cubic wells with ~30% less indium than the amount needed in a traditional hexagonal well"