Power/Performance Bits: Dec. 19

Stabilizing perovskites Scientists at EPFL and the University of Cordoba found a way to improve the stability of perovskite solar cells. While perovskites show promising efficiencies as solar cells, they are soft crystalline materials and prone to problems due to decomposition over time. By introducing the large organic cation guanidinium (CH6N3+) into methylammonium lead iodide perovskites, t... » read more

Manufacturing Bits: Oct. 15

Better Beer Rice University has devised a polymer material that could boost the properties of natural gas, beer and soda. By adding modified, single-atom-thick graphene nanoribbons (GNRs) to thermoplastic polyurethane (TPU), Rice’s polymer material could make it more practical for vehicles to run on compressed natural gas. The material is far more impermeable to pressurized gas and lighte... » read more

System Bits: July 30

Controlling nanomaterials To find out why some sets of flat nanocrystals arrange themselves in an alternating, herringbone style even though it wasn’t the simplest pattern, University of Pennsylvania researchers turned to experts in computer simulation at the University of Michigan and the Massachusetts Institute of Technology. The result of the collaboration gives nanotechnology research... » read more

System Bits: July 23

Bottom-up nanoribbons Concentric hexagons of graphene grown in a furnace at Rice University represent the first time anyone has synthesized graphene nanoribbons on metal from the bottom up — atom by atom. As seen under a microscope, the layers brought onions to mind, according to Rice chemist James Tour, until a colleague suggested flat graphene could never be like an onion. “So I said,... » read more