You are seeing Ask web results for EXCITON.
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Exciton's new absorbing dyes or "absorbers" can provide selective or broad band light filtering throughout visible and near infrared. Absorbers with relatively narrow absorption bands, such as those shown below, filter out infrared light with low visible color even at high optical densities.
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Exciton - Wikipedia, the free encyclopedia
An exciton is a bound state of an electron and an imaginary particle called an electron hole in an insulator or semiconductor, and such is a Coulomb-correlated electron-hole pair . It is an elemen...
en.wikipedia.org/wiki/Exciton |
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Britannica online encyclopedia article on exciton (physics), the combination of an electron and a positive hole (an empty electron state in a valence band), which is free to move through a nonmetallic crystal as a unit. ... When an electron in an exciton recombines with a positive hole, the original atom is restored,
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exciton n. An electrically neutral excited state of an insulator or semiconductor, often regarded as a bound state of an electron and a hole ... A vivid picture of exciton formation is as follows: a photon enters a semiconductor, exciting an electron from the valence band into the conduction band. The missing electron in...
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David Goldberg1, Lev I. Deych1, Alexander A. Lisyansky1, Zhou Shi1, Vinod M. Menon1, Vadim Tokranov2, ... Coherent interaction of an ensemble of dipole active atoms or excitons with a vacuum electromagnetic field has been studied extensively since its initial conception by Dicke in 19541, 2, 3, ... Open Innovation Challenges...
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exciton distribution is the appearance of a sharp dip in the time-resolved excitonic PL when ... created exciton population in semiconductor quantum wells ...
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Because the exciton is an electron orbiting a lack of an electron, it is possible for the electron to jump into the hole, causing the exciton to vanish. Because this "recombination" releases energy, this process usually emits light.
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A vivid picture of exciton formation is as follows: a Photon enters a semiconductor, exciting an electron from the Valence Band into the Conduction Band . The missing electron in the valence band leaves a hole behind, of opposite electric charge, to which it is attracted by the Coulomb Force . The exciton results from the ...
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Self trapping of the triplet exciton in Sodium Chloride ... One of the interesting unresolved issues in the exciton research is the mechanism and enegretics of its self-trapping into a small polaron state, and a decay into spatially separated defects.
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