New Composite Electrolyte for Advanced Solid State Batteries Shows that Two is Better than One
February 26, 2014 — A new composite electrolyte for batteries with high conduction has been made by combining two solid electrolytes with complementary properties. The composite optimizes the favorable properties of the individual components while minimizing their limitations and opens the door for the development of new solid-state batteries for energy-dense storage of electricity.
Using neutrons to probe and understand battery interfaces
February 14, 2014 — Neutron reflectometry at the Spallation Neutron Source has revealed the composition and growth characteristics of the spontaneous chemical reaction layer formed between a silicon battery anode and an organic electrolyte that ultimately limits the capacity of the battery. We determined that a 3.
Anomalous Photodeposition of Ag on Ferroelectric Surfaces with Below Bandgap Excitation
February 14, 2014 — Photochemical deposition of elemental Ag nanoparticles on a ferroelectric substrate with sub bandgap transmitted white light indicates light confinement and non-linear optical phenomena. This innovation opens the pathway to unprecedented fine control and optimization of the growth of functional nanostructures for potential applications ranging from chemical sensing to high speed data transfer.
New imaging-based chemical analysis of atomic layers
February 14, 2014 — A new Z-contrast image analysis method now allows dopant atoms in two-dimensional materials to be located and quantified. With this ability, the distribution of dopants can be verified as the physical and chemical properties are modified. This new capability was used to study doped molybdenum disulfide in which the optical band gap was tuned between 1.85 and 1.
Eighth Shull Fellow to Focus on Biochemistry and Crystallography
February 07, 2014 — Biochemist and molecular biologist Mayank Aggarwal has been awarded this year’s Clifford G. Shull Fellowship. Aggarwal is the eighth fellow to join the Neutron Sciences Directorate at Oak Ridge National Laboratory since the program began in 2006.