Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An electrically neutral excited state of an insulator or semiconductor, often regarded as a bound state of an electron and a hole.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A bound state of an electron and an electron hole in an insulator or semiconductor

Etymologies

excit(ation) + -on1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
excit- + -on (Wiktionary)

Examples

  • So far, they have only managed to prevent one type of quenching called exciton-metal quenching, which was done by moving the light-emitting area further away from the electrodes.

    PhysOrg.com - latest science and technology news stories

  • Similarly, the largest quenching effect in OLEDs, called exciton-charge quenching, reduces the number of excitons, and occurs due to a spatial overlap of excitons and charges.

    PhysOrg.com - latest science and technology news stories

  • Previously, the effects of dielectric confinement have been investigated theoretically for the role they play in defining the optical properties of nanostructures, such as exciton binding energies, while the impact on electrical characteristics has largely been neglected partly due to the misconception that the relevant length scale still falls into the

    Nano Tech Wire

  • In the material, the procedure produced quasiparticles called exciton polaritons, which form when photons of light and electrons collide.

    Quantum Study Yields Unusual Results | Impact Lab

  • That was a brilliant report delivered by E.F. Gross about the discovery of the exciton.

    Zhores I. Alferov - Autobiography

  • The article, "Quantum oscillatory exciton migration in photosynthetic reaction centers" by

    Smart Economy

  • But the biggest drawback to using OLEDs for light display applications is that they intrinsically suffer from photon loss and exciton quenching.

    PhysOrg.com - latest science and technology news stories

  • Also, the light-emitting region is physically separated from the charge flows, which prevents exciton-charge quenching.

    PhysOrg.com - latest science and technology news stories

  • For one, the light-formation and light-emitting regions are located far enough away from the electrodes so that photon losses at the electrodes and exciton-metal quenching are prevented.

    PhysOrg.com - latest science and technology news stories

  • In the research published in this week's Nature, the researchers used hybrid metal/semiconductor nanostructures developed through this process to experimentally demonstrate "tunable resonant coupling" between a plasmon (from metal core) and an exciton

    innovations-report

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  • "Much of today's research in electronics is geared towards obtaining faster computing and higher communication speeds. Researchers at UC San Diego are no exception, and have recently announced they have made another important step towards achieving exciton-based computation at room temperatures. Excitonics exploits the unique properties of excitons instead of the usual electrons, and promises much faster performance by interfacing more naturally with optical communications such as fiber optics."
    - Dario Borghino, New advances in excitonics promise faster computers, gizmag.com, 1 Oct 2009.

    October 2, 2009