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Heat-Transfer Fluids Cut Cost of Quantum Dots

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Anne L. Fischer

Quantum dots may be tiny, but they are hugely important for their optoelectronic properties. A drawback, however, is that they typically cost thousands of dollars per gram. Approximately 90 percent of the expense of quantum dots lies in the cost of octadecene, an organic solvent used in the manufacturing process. Now researchers at Rice University in Houston have developed an alternative method that employs heat-transfer fluids to yield dots at a fraction of the cost. According to chemical engineering professor Michael S. Wong, the scientists were working to scale up the production of...Read full article

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    Published: November 2005
    Glossary
    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.
    optoelectronic
    Pertaining to a device that responds to optical power, emits or modifies optical radiation, or utilizes optical radiation for its internal operation. Any device that functions as an electrical-to-optical or optical-to-electrical transducer. Electro-optic often is used erroneously as a synonym.
    quantum dots
    A quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium arsenide, that exhibits unique quantum mechanical properties. These properties arise from the confinement of electrons within the dot, leading to discrete energy levels, or "quantization" of energy, similar to the behavior of individual atoms or molecules. Quantum dots have a size on the order of a few nanometers and can emit or absorb photons (light) with precise wavelengths,...
    Basic ScienceFeaturesheat-transfer fluidsindustrialnanooptoelectronicquantum dots

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