Deji Akinwande, professor of electrical and computer engineering at The University of Texas at Austin, develops electronic devices that rely on atom-thin sheets known as two-dimensional (2-D) materials. While the carbon material graphene has received the lion’s share of attention in this field, analogous materials such as silicene, phosphorene, and molybdenum disulfide are increasingly being tapped for applications such as wireless communications and low-power computing. Mark Peplow spoke to Akinwande and reports back from the frontiers of flatland.