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Nanostructures Show Promise for Efficient LEDs

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Nanostructures and an indium nitride (InN) semiconductor could hold promise for improving the efficiency of LEDs, particularly in the green gap, where productivity typically takes a dive. Researchers from the University of Michigan conducted tests at the US Department of Energy's National Energy Research Scientific Computing Center using the Cray XC30 supercomputer. They discovered that the semiconductor, which traditionally emits IR radiation, can also emit green light when reduced to 1-nm-wide wires. A 1-nm-wide indium nitride wire shows the distribution of an electron around a...Read full article

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    Published: April 2014
    Glossary
    bandgap
    In semiconductor physics, the term bandgap refers to the energy range in a material where no electronic states are allowed. It represents the energy difference between the valence band, which is the highest range of energy levels occupied by electrons in their ground state, and the conduction band, which is the lowest range of unoccupied energy levels. The bandgap is a crucial parameter in understanding the electrical behavior of semiconductors and insulators. Here are the key components...
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    alloysAmericasbandgapelectronsenergyEnergy Frontier Research Centergreen gapholesLight SourcesMaterialsMichigannanonanomaterialsnanostructuresNational Energy Research Scientific Computing CenterOffice of ScienceOpticsResearch & TechnologysemiconductorsTech PulseUniversity of MichiganUS Department of Energyindium nitrideInNCray XC30 supercomputerCenter for Solar and Thermal Energy ConversionLEDs

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