Achieving brighter LEDs without reducing efficiency, while reducing production cost and environmental impact

https://www.eurekalert.org/news-releases/1065993

"most efficient light source, gallium nitride/ indium gallium nitride layer structured LEDs, utilize their intrinsic polarization... cut wafer into different orientations, altering crystal's polarization... lower polarization helpful pointing same direction as that of standard LEDs, so grew LEDs on cheap sapphire substrate in 10-13 orientation enabling greater efficiency at higher power... micro-LED displays for mobile devices, large-screen TV, automotive/ specialty industrial lighting, visible light communication, VR glasses"