Energy, Climate, & Infrastructure Security (ECIS)

Research & Capabilities

Sandia Develops a Synthesis of Quantum Dots that Increases the Quantum Yield to 95.5%

On May 23, 2013, in Energy, Energy Efficiency, Materials Science, News, News & Events, Office of Science, Research & Capabilities, Solid-State Lighting

White light-emitting diodes (LEDs) based on blue indium-gallium-nitride (InGaN) LEDs that excite yellow-green-emitting yttrium-aluminum-garnet: cerium phosphors (YAG:Ce, a nonhygroscopic, chemically inert inorganic scintillator) have a cold white emission that can be made warmer with the addition of a red-emitting component. Unfortunately, red emitters that satisfy all criteria for use in solid-state lighting (SSL) applications are [...]


Phonon Scattering by Crystallographically Coherent Domain Walls

On May 23, 2013, in Materials Science, News, News & Events, Office of Science, Research & Capabilities

Sandia staff members Jon Ihlefeld (in the Elec­tronic, Optical, & Nanostructured Materials Dept.) and Stephen Lee (in the Semiconductor Material and Device Sciences Dept.) in collaboration with professors Patrick Hopkins (Univ. of Virginia), Bryan Huey (Univ. of Connecticut), and Darrell Schlom (Cornell Univ.) recently published “Effects of coherent ferroelastic domain walls on the thermal conductivity [...]


Epitaxial Growth of La2O3 on Gallium Nitride and Measuring Band Offsets

On May 23, 2013, in Materials Science, News, News & Events, Research & Capabilities

Sandians Jon Ihlefeld (in the Electronic, Optical, & Nanostructured Materials Dept.), Mike Brumbach (in the Materials Characterization and Performance Dept.), and Stan Atcitty (in the Energy Storage Technology and Systems Dept.) recently published the article “Band offsets of La2O3 on (0001) GaN grown by reactive molecular-beam epitaxy” in Applied Physics Letters outlining research to prepare [...]


Sandia Invents Versatile High-Temperature Seebeck and Electrical Conductivity Instrument

On May 17, 2013, in Materials Science, News, News & Events, Office of Science, Research & Capabilities

Sandia post­doc Harlan Brown-Shaklee (in the Electronic, Optical, and Nanostructured Materials Dept.) and staff members Jon Ihlefeld (also in the Electronic, Optical, and Nanostructured Materials Dept.) and Peter Sharma (in the Materials Physics Dept.) have built a high-temperature Seebeck and electrical conductivity measurement instrument that can operate over broad atmosphere and temperature conditions. The Seebeck [...]


Louisiana Blue Ribbon Commission on Bayou Corne Safety

On May 9, 2013, in Capabilities, Carbon Capture & Storage, Climate, Earth Sciences Research Center, Modeling & Analysis, News, News & Events, Research & Capabilities

Secretary Stephen Chustz, from the Louisiana Department of Natural Resources (LADNR), asked David Borns (in Sandia’s Geotechnology and Engineering Dept.) to serve on the blue ribbon commission (BRC) that was formed by Governor Bobby Jindal to provide science-based public safety recommendations regarding the sinkhole in the Bayou Corne area. The BRC will help LADNR continue [...]


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Last Updated: May 9, 2013
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