Berkeley Lab reports the first experimental observation of ultrafast charge transfer in photo-excited MX2 materials, the graphene-like two-dimensional semiconductors. Charge transfer time clocked in at under 50 femtoseconds, comparable to the fastest times recorded for organic photovoltaics.
Berkeley Lab researchers have recorded the first direct observations of how facets form and develop on platinum nanocubes in solution, pointing the way towards more sophisticated and effective nanocrystal design and revealing that a nearly 150 year-old scientific law describing crystal growth breaks down at the nanoscale.
How Sweet It Is: New Tool for Characterizing Plant Sugar Transporters Developed at Joint BioEnergy Institute
JBEI researchers have developed a powerful new tool that can help advance the genetic engineering of “fuel” crops for clean, green and renewable bioenergy – an assay that enables scientists to identify and characterize the function of nucleotide sugar transporters, critical components in the biosynthesis of plant cell walls.
By combining atomic force microscopy with infrared synchrotron light, researchers from Berkeley Lab’s Advanced Light Source and the University of Colorado have improved the spatial resolution of infrared spectroscopy by orders of magnitude, while simultaneously covering its full spectroscopic range, enabling the investigation of variety of nanoscale, mesoscale, and surface phenomena that were previously difficult to study.
No Ocean-Borne Radiation from Fukushima Detected on West Coast Shoreline, According to Analysis of 1st Samples from ‘Kelp Watch 2014’
Scientists working together on Kelp Watch 2014 announced today that the West Coast shoreline shows no signs of ocean-borne radiation from Japan’s Fukushima nuclear power plant disaster, following their analysis of the first collection of kelp samples along the western U.S. coastline. The team is co-led by Berkeley Lab and UC Berkeley’s Kai Vetter.
By the end of this century climate change will result in more frequent and more extreme heat, more drought, and fewer extremes in cold weather in the United States. Average high temperatures could climb as much as 10 or more degrees Fahrenheit in some parts of the country. These are some of the projections made by Berkeley Lab climate scientist Michael Wehner and his co-authors on the National Climate Assessment (NCA).