New synthesis process paves way for more efficient lasers, LEDs

https://news.ncsu.edu/2021/10/holes-p-type-material/

"there was a limit on the number of holes that you can make in p-type III-nitride semiconductor materials... But that limit just went up... this means more of the energy input in LEDs is converted into light. For lasers, it means that less of the energy input will be wasted as heat... Previously, the highest hole concentration achieved... was about an order of magnitude lower... also applied these indium gallium nitride templates as substrates for LED structures to address the long-lasting problem called the green gap"