Oak Ridge National Laboratory – TechConnect Briefs

Using in situ Neutron Reflectometry to Study Solid-Electrolyte Interphase Formation in aSi and Sn Anode Materials

Kim J., Doucet M., Veith G., Browning J., Oak Ridge National Laboratory, US

Interfacial reactions between liquid electrolytes and electrode surfaces in energy storage devices are responsible for their long-term behavior and may mediate certain safety concerns regarding unwanted oxidation/reduction of the electrolyte. These reactions occur when an [...]

Learning the Physics and Chemistry of Surfaces via Machine Vision and Deep Data Analysis

Ziatdinov M., Maksov A., Kalinin S.V., Oak Ridge National Laboratory, US

The last decade has witnessed an enormous increase in the size and quality of datasets produced by microscopic and spectroscopic experimental techniques. Particularly, the recent advances in scanning transmission electron and scanning probe microscopies have [...]

G-Mode KPFM: Bringing Kelvin probe force microscopy into the information age

Collins L., Kalinin S., Jesse S., Oak Ridge National Laboratory, US

Fundamental mechanisms of energy storage, corrosion, sensing, and multiple biological functionalities are directly coupled to electrical processes and ionic dynamics at both the solid-gas and solid-liquid interfaces. In many cases, these processes are spatially inhomogeneous [...]

Vertically Aligned Graphene sheets Based Coatings as Nano-micro-structured Electrodes for Enhanced Performance of Supercapacitors

Jang G.G., Keum J.K., Song B., Li L., Hensley D.K., Jiang Y., Hunt A., Moon K-S, Wong C.P., Hu M.Z., Hunt A., Oak Ridge National Laboratory, US

This work develops a molecular engineering approach to control the interspacing of graphene sheets and then an external field approach to induce the re-orientation of the graphene sheets during the deposition process to form a [...]

Neutron Scattering for Biological Research: Progress at the Bio-SANS Beam Line

Qian S., Pingali S.V., Weiss K., Urban V., O'Neill H.M., Langan P., Oak Ridge National Laboratory, US

Structure-function relationships remain a critical theme in understanding many important biological processes regarding energy, disease and other applications. At Oak Ridge National Laboratory, home to two of the most powerful neutron sources for research High [...]

Polymerized Ionic Liquid Films in Strong Electric Fields: Ion Transport and Nanopatterning

Kumar R., Bocharova V., Strelcov E., Tselev A., Collins L., Kravchenko I.I., Berdzinski S., Strehmel V., Ovchinnikova O.S., Minutolo J.A., Sangoro J.R., Agapov A.L., Kisliuk A., Soko A.P., Oak Ridge National Laboratory, US

The current work represents an important step in a search for novel materials and experimental techniques that would allow for controllable and inexpensive methods of surface patterning with nanoscale resolution. The novelty of the nanopatterning [...]

Maskless Lithography of Nanometer-Scale Circuit Structures in Supported, Single-Layer Graphene Using Helium Ion Microscopy

Rondinone A., Iberi V., Matola B., Linn A., Joy D., Oak Ridge National Laboratory, US

Here we will discuss the utility of scanning helium ion lithography for fabricating conducting graphene structures that are supported directly by silicon oxide. The lithography is performed in a single step, dry, using high-resolution He- [...]

Secondary Use Energy Storage

Starke M., Irimger P., Ollis B., Andrews G., Karlson P., Thabiappah S., Rosenfeld P., Massin S., Oak Ridge National Laboratory, US

This study presents the testing of a community energy storage system composed of repurposed used electric or plug-in hybrid electric vehicle (EV/PHEV) battery packs. The expectation is that the vehicular batteries will be replaced with [...]

Secondary Use Energy Storage

Starke M., Irimger P., Ollis B., Andrews G., Karlson P., Thabiappah S., Rosenfeld P., Massin S., Oak Ridge National Laboratory, US

This study presents the testing of a community energy storage system composed of repurposed used electric or plug-in hybrid electric vehicle (EV/PHEV) battery packs. The expectation is that the vehicular batteries will be replaced with [...]

Visualizing Nano-Electromechanics by Vector Piezoresponse Force Microscopy

Rodriguez B.J., Jesse S., Baddorf A.P., Kalinin S.V., Gruverman A., Oak Ridge National Laboratory, US

This is a detailed examination of the electro-mechanical and elastic coupling that occurs in the scanning probe microscopy of electro-active materials. This research is useful to detecting, imaging and understanding the orientation of nanoscale electromechanical [...]