Energy and Climate

SAND 2011-5054W

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On February 15, 2012, in


Light Creation Materials

On July 14, 2011, in

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 […]

Wavelength Conversion Materials

On July 14, 2011, in

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 […]

White Light Creation Architectures

On July 14, 2011, in

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 […]


On May 19, 2011, in

Sandia is a Collaborating Institution of the  ”International Institute for Carbon-Neutral Energy Research (I2CNER)” of Kyushu University.  This institute is a “World Premier International Research Center Initiative (WPI)” established by Japan’s Ministry of Education, Culture, Sports, Science and Technology (MEXT).   These institutes are structured to support projects aimed at creating preeminent research centers staffed at […]

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