Single electrons hopping between individual atomic layers are responsible for opening up a bandgap in multilayer black phosphorus (or phosphorene) – a new technologically important 2D material. This unexpected finding, from researchers at Radboud University Nijmegen in the Netherlands, is very different to what happens in other 2D materials like graphene and the transition-metal dichalcogenides……..
http://nanotechweb.org/cws/article/tech/57528
