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PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

Nanocrystal Films Promising for Photonic Circuits

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CAMBRIDGE, Mass., Aug. 24, 2012 — A new process for patterning defect-free nanocrystal films with nanometer precision could advance photonic devices and basic physics research. Semiconductor nanocrystals hold promise for a range of applications, including high-resolution display screens, biomolecule detectors, solar cells, and photonic or electronic circuits. However, controlling the placement of nanocrystals on a surface to make films that are structurally uniform has proved difficult. Typically, nanocrystal films also have cracks that limit their usefulness. Now, MIT researchers have found a way to make...Read full article

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    Published: August 2012
    Glossary
    fluorescence
    Fluorescence is a type of luminescence, which is the emission of light by a substance that has absorbed light or other electromagnetic radiation. Specifically, fluorescence involves the absorption of light at one wavelength and the subsequent re-emission of light at a longer wavelength. The emitted light occurs almost instantaneously and ceases when the excitation light source is removed. Key characteristics of fluorescence include: Excitation and emission wavelengths: Fluorescent materials...
    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.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    AmericasBasic SciencebiomoleculesBiophotonicsConsumerdefect-free patternsDisplayselectronic circuitsenergyfluorescencegreen photonicsLight SourcesMarc KastnerMassachusettsmedical screening systemsmedical testing devicesMicroscopyMITMoungi Bawendinanonanocrystal filmsnanocrystal productionnanocrystalsnanoscale resolutionoptical microscopephotonic circuitsphotonicsResearch & Technologysensitive detectorsSensors & Detectorssolar cellsTamar MentzelLEDs

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