Researchers in the US have succeeded in chemically assembling the electronic junctions between a 2D semiconductor (molybdenum sulphide) and graphene, and have made an atomic transistor with good properties. They have also assembled the heterostructures into 2D logic circuits, such as an NMOS inverter with a voltage gain as high as 70………….
http://nanotechweb.org/cws/article/tech/65627
