Sandia National Laboratories – TechConnect Briefs

Ionic Liquid Flow Battery Materials and Prototyping

Anderson T.M., Pratt III H.D., Sandia National Laboratories, US

SNL has developed a series of ionic-liquid electrolytes with accompanying non-aqueous compatible membranes and flow cell designs for improved energy density flow batteries targeted to support increasing demands for stationary energy storage. The new electrolytes [...]

Simulation and Fabrication of Large Area 3D Nanostructures

Bogart K.H.A., El-kady I., Grubbs R.K., Rahimian K., Sanchez A.M., Ellis A.R., Wiwi M., McCormick F.B., J.-L. Shir D., Rogers J.A., Sandia National Laboratories, US

Three-dimensional (3D) nano-structures are vital for emerging technologies such as photonics, sensors, fuel cells, catalyst supports, and data storage. The Proximity-field nanoPatterning1 method generates complex 3D nanostructures using a single exposure and development cycle. Exposure [...]

Optimizing Multiscale Networks for Transient Transport in Nanoporous Materials

Nilson R.H., Griffiths S.K., Sandia National Laboratories, US

Hierarchical nanoporous materials afford the opportunity to combine the high surface area and functionality of nanopores with the superior charge/discharge characteristics of wider transport channels. In the present paper we optimize the apertures and spacing [...]

Simulation and Fabrication of Large Area 3D Nanostructures

Bogart K.H.A., El-kady I., Grubbs R.K., Rahimian K., Sanchez A.M., Ellis A.R., Wiwi M., McCormick F.B., J.-L. Shir D., Rogers J.A., Sandia National Laboratories, US

Three-dimensional (3D) nano-structures are vital for emerging technologies such as photonics, sensors, fuel cells, catalyst supports, and data storage. The Proximity-field nanoPatterning1 method generates complex 3D nanostructures using a single exposure and development cycle. Exposure [...]

Microfluidics and Microacoustics for Miniature Flow Cytometry

Ravula S.K., Branch D.W., Sigman J., Clem P., Kaduchak G., Brener I., Sandia National Laboratories, US

Flow cytometry is an indispensable tool in clinical diagnostics, for example in cancer, AIDS, infectious disease outbreaks, microbiology, and others. The cost and size of existing cytometers precludes their entry into field clinics, water monitoring, [...]

Electrical Contacts to Nanotubes and Nanowires: Why Size Matters

Leonard F., Talin A.A., Sandia National Laboratories, US

Electrical contacts play a key role in electronics. As new materials such as nanotubes and nanowires are explored for nanoelectronics, the fundamental aspects of electrical contacts need to be re-examined due to the unique properties [...]

Wall Functions for Incorporation of Atomistic Physics into Continuum Modeling of Electrokinetic Flow

Nilson R.H., Griffiths S.K., Sandia National Laboratories, US

The atomistic physics of fluid/solid interfacial layers may substantially influence liquid flow and ion transport, particularly in nanoscale channels. Previous studies addressing non-continuum fluid mechanics have been largely based on Molecular Dynamics (MD) simulations that [...]

Automated and Integrated Mask Genertion from a CAD Constructed 3D Model

Schiek R.L., Schmidt R.C., Sandia National Laboratories, US

We have developed and implemented a method which when given a three-dimensional object can infer from the object's topology the two-dimensional masks needed to produce that object with surface micromachining. The masks produced by this [...]

Mimicking Photosynthesis to Make Functional Nanostructures and Nanodevices

Shelnutt J.A., Wang Z., Song Y., Medforth C.J., Pereira E., Sandia National Laboratories, US

Photocatalytic porphyrins are used to reduce metal complexes from aqueous solution and, further, to control the deposition of metals onto porphyrin nanotubes and surfactant assembly templates to produce metal composite nanostructures and nanodevices. For example, [...]

Self-Assembly and Integration of Ordered, Robust, Three-Dimensional Gold Nanocrystal/Metal Oxide Superlattices

Fan H-Y, Yang K., Gabaldon J.P., Boye D.M., Sigmon T., Malloy K.J., Brinker C.J., Sandia National Laboratories, US

In this presentation, we will report a simple and general method to synthesize ordered, three-dimensional, transparent gold NC/silica superlattices through self-assembly of water-soluble gold NC-micelles and soluble silica under controlled kinetic conditions. NC-micelles were synthesized [...]