Flickr Twenty years on from its discovery, graphene is coming of age. Graphene, an atom-thick honeycomb of carbon atoms, was hailed as a wonder material when it was first made, in England in 2004. It conducts heat and electricity brilliantly while being stronger than steel — “expectations were very, very high,” its Nobel-winning discoverer told Science. But it was hard to incorporate in mass-produced devices, applications were overhyped, and interest waned in the 2010s. In the last few years, though, following the classic hype cycle, companies are developing new uses for graphene — uses as diverse as coating for ships’ hulls, heat diffusers in cell phones, and brain electrodes — and the industry, currently worth around $150 million a year, could increase in value tenfold in the next decade. |