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How Can Quantum Dots Be Used?

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Quantum dots are so versatile that most of their applications have not yet been realized. A few in development are: Solar cells. Solar cells made from silicon can be stable and efficient, but they are expensive to make. Solar cells that employ organic semiconductors are less expensive but suffer from poor efficiency. Quantum dots can be used to make solar cells by combining colloidal dots with organic semiconductors. The dots improve the efficiency of these devices and enable the manufacturer to control their absorptive properties. The quantum dots can be formed into an ordered 3-D...Read full article

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    Published: July 2005
    Glossary
    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,...
    CommunicationsConsumerdefenseenergyFeaturesindustrialorganic semiconductorsquantum dotssilicon

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