Researchers at the universities of Manchester and Sheffield in the UK have fabricated a new type of light-emitting diode by stacking up several 2D materials: metallic graphene, insulating hexagonal boron nitride and various semiconducting monolayers made from transition metal dichalcogenides (TMDCs). The devices emit light across their whole surface and have a high quantum efficiency of nearly 10%. The heterostructures, which are only around 10-40 atoms thick, might be used in semi-transparent devices, such as displays, and in flexible electronics……
http://nanotechweb.org/cws/article/tech/60246
