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单词 exciton
释义

Definition of exciton in English:

exciton

noun ɪkˈsʌɪtɒnˈɛksɪtɒnˈɛksətɑn
Physics
  • A mobile concentration of energy in a crystal formed by an excited electron and an associated hole.

    Example sentencesExamples
    • Some of these excitons emit light when they decay to the ground state.
    • The injected electrons and holes combine to form excitons, or electron-hole pairs, bound together by their mutual attraction.
    • The first images of the motion of an exciton - a particle essential to modern electronics - and a biexciton show that the lighter exciton roams farther.
    • As the group intensified optical stimulation during the experiments, though, the number of excitons increased and the electron/electron-hole pairs cancelled each other.
    • Implicitly, the more donors, the greater the probability for a photon to become an exciton.

Origin

1930s: from excitation + -on.

 
 

Definition of exciton in US English:

exciton

nounˈeksətänˈɛksətɑn
Physics
  • A mobile concentration of energy in a crystal formed by an excited electron and an associated hole.

    Example sentencesExamples
    • Some of these excitons emit light when they decay to the ground state.
    • The first images of the motion of an exciton - a particle essential to modern electronics - and a biexciton show that the lighter exciton roams farther.
    • As the group intensified optical stimulation during the experiments, though, the number of excitons increased and the electron/electron-hole pairs cancelled each other.
    • Implicitly, the more donors, the greater the probability for a photon to become an exciton.
    • The injected electrons and holes combine to form excitons, or electron-hole pairs, bound together by their mutual attraction.

Origin

1930s: from excitation + -on.

 
 
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更新时间:2025/1/12 2:41:41