GaN based nanorod technology for solid state lighting

GaN nanorods and 3D columns recently attracted a lot of attention since they are expected to be an exciting new route towards solid state lighting. In contrast to a planar thin film technology, a completely 3-dimensional nanorod approach gives more freedom in the device design. E.g., a core-shell design of LEDs based on 3D GaN offer a dramatically enhanced active area per wafer footprint, since the active area is scaling with height of the 3D structures. High quality core-shell devices will have a tremendous impact on LED technology.