[Images above] Credit: NIST
Penn State researchers built a four-way intersection in bilayer graphene using electron waveguides created by electron beam lithography, and the guides determined where the electrons will go. This type of control is common for light but not easily accomplished with electrons.
A collaboration of researchers in China, Canada, Belgium, and the U.S. created a model for extracting nonlinear optical responses for all 2D materials. Their approach models the current density as a ‘current sheet’ described by a Dirac δ-function, then they derive a key equation for nonlinear optics using a structure factor that describes environmental effects.
University of California, Berkeley researchers manufactured nanometer-thin sheets of metal carbide using a self-assembly process that relies on gelatin. They found that the performance is very close to the best catalyst made of platinum and carbon.
A team of chemists from Kaunas University of Technology and physicists from Helmholtz-Zentrum Berlin synthesised a molecule assembling itself into a monolayer, which can evenly cover any oxide surface. The first tests of the optimized materials led to over 21 percent efficient solar cells.
Researchers developed a new nanostructured anode material for lithium ion batteries using graphene‐wrapped mesoporous copper nickel oxide, which allowed for reversible cycling stability over 3,000 reversible charge and discharge cycles.
Researchers at MIT, Draper, and Brigham and Women’s Hospital designed an ingestible capsule that can reside in the stomach for at least a month, transmitting information and responding to instructions from a user’s smartphone. The current version of the device is powered by a small silver oxide battery.
A collaboration between Honda Research Institute, California Institute of Technology, and NASA’s Jet Propulsion Laboratory researchers developed a fluoride-based battery capable of operating at room temperature. Fluoride batteries create considerably less environmental impact than the extraction process for lithium and cobalt.
The 10th International Conference on High Temperature Ceramic Matrix Composites will take place in Bordeaux, France from September 22–26, 2019. Visit www.ht-cmc10.org to submit your abstract until February 15, 2019.
Researchers from ETH Zurich used first aluminum oxide and then titanium oxide plates to imitate mother-of-pearl structure. The mother-of-pearl-like materials can have tailor-made properties for respective applications, including construction, aircraft, and space.