SAND 2011-5054W

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Materials & Components Compatibility

The materials and components compatibility program element applies Sandia’s core capability in hydrogen embrittlement to address fundamental questions about the mechanical behavior of materials when exposed to high-pressure gaseous hydrogen. The cornerstone of Sandia’s core capability in hydrogen embrittlement is the Hydrogen Effects on Materials Laboratory where specialized assets reside for conducting mechanical testing of [...]

By |June 12th, 2014|Comments Off on Materials & Components Compatibility

Light Creation Materials

Light Creation Materials Different families of inorganic semiconductor materials can contribute to solid-state white lighting. The primary chemical systems used for LEDs are Group-III nitrides and Group-III phosphides. It is, however, possible that breakthroughs in a different material system, for example ZnO, will be important. AlGaInN Materials LEDs based on gallium nitride (GaN) and ternary [...]

By |July 14th, 2011|Comments Off on Light Creation Materials

Wavelength Conversion Materials

Rare-Earth Phosphors Inorganic phosphors doped with rare-earth metals are used for a variety of applications. A wide array of these phosphors has been developed for use with fluorescent lamps. The first SSL white LEDs have used an yttrium aluminum garnet doped with trivalent cerium (YAG:Ce+3) to convert output from a blue LED into very [...]

By |July 14th, 2011|Comments Off on Wavelength Conversion Materials

White Light Creation Architectures

White Light Creation Architectures The entire spectral range of visible light can be produced by III-V semiconductor LEDs. AlGaInP LEDs can cover the spectral range from red to amber, and their commercial production is relatively mature. AlGaInN LEDs are the prime candidates for producing wavelengths from blue to yellow. Two main approaches for producing white [...]

By |July 14th, 2011|Comments Off on White Light Creation Architectures

Thermochemical Conversion

Thermochemical conversion of biomass to fuels has become increasingly important as climate and energy security issues challenge our dependence on conventional energy sources. Sandia provides the enabling science and engineering basis for the next generation of thermochemical platform technologies for biomass to fungible fuels and power.  Thermochemical fuels research expertise includes biomass pre-treatment, fast-pyrolysis, char [...]

By |April 27th, 2011|Comments Off on Thermochemical Conversion

Microalgae

Advanced biofuels derived from microalgae at the commercial scale could meet, depending on productivity, the transportation fuel needs of the entire United States using a relatively small land area as compared to that required by lignocellulosic fuels. Microalgae consume CO2 as a nutrient, can be grown with impaired (e.g., brackish) water sources on land that does [...]

By |April 27th, 2011|Comments Off on Microalgae

Lignocellulosic Biomass

Lignocellulosic biomass is one of the most abundant plants on Earth and is a critical feedstock for the production of renewable fuels. Lignocellulose is a mixture of complex sugars and lignin, a non-carbohydrate polymer that provides strength and structure to plant cell walls. By extracting simple fermentable sugars from lignocellulose and producing biofuels, the [...]

By |April 26th, 2011|Comments Off on Lignocellulosic Biomass

Brief History of Artificial Lighting Technology

As discussed in “Light Emitting Diodes (LEDs) for General Illumination, Update 2002, An OIDA Technology Roadmap” (co-sponsored by the U.S. Department of Energy, the National Electrical Manufacturers Association, and the Optoelectronic Industry Development Association), artificial lighting technologies are substitutes for sunlight in the 425-675 nm spectral region where sunlight is most concentrated and to [...]

By |November 11th, 2010|Comments Off on Brief History of Artificial Lighting Technology

Overview

Sandia National Laboratories is home to one of the 46 multi-million dollar Energy Frontier Research Centers (EFRCs) funded by the U.S. Department of Energy Office of Science. These Centers integrate the talents and expertise of leading scientists in a setting designed: to accelerate basic and advanced discovery research; and to establish the scientific foundation for [...]

By |November 11th, 2010|Comments Off on Overview

Solid-State Lighting Science EFRC

Welcome to our SSLS EFRC Sandia National Laboratories is home to one of the 46 multi-million dollar Energy Frontier Research Centers (EFRCs) funded by the U.S. Department of Energy Office of Science. These Centers integrate the talents and expertise of leading scientists in a setting designed: to accelerate basic and advanced discovery research; and [...]

By |November 11th, 2010|Comments Off on Solid-State Lighting Science EFRC