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exciton

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ex·ci·ton  (ks-tn, -s-)
n.
An electrically neutral excited state of an insulator or semiconductor, often regarded as a bound state of an electron and a hole.
[excit(ation) + -on.]
exciton [ˈɛksaɪˌtɒn]
n
(Physics / General Physics) a mobile neutral entity in a crystalline solid consisting of an excited electron bound to the hole produced by its excitation
[from excit(ation) + -on]
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When the electron and hole recombine, the exciton decays and releases its energy as a flash of light.
Extremely fast computers come a step closer to reality by Asian News International
1] state through electrostatic multipolar interaction or by the exciton migration via the Forster dipole-dipole mechanism in solid complexes (25).
Facile fabrication of novel Eu-containing copolymer and luminescent ... by Huang, Ziqun; Zhang, Huaihong; Guo, Jiaxiu; Wang, Jianli; Chen, Yaoqiang / Polymer Engineering and Science
Editor Vardeny (physics, University of Arizona) has included perspectives from both sides of the debate on whether the excited state in organic semiconductors is band-like, with electrons and holes in conduction and valence bands similar to regular semiconductors, or whether the photogenerated geminate electron-holes are bound together to form tightly bound excitons with large binding energy.
Ultrafast dynamics and laser action of organic semiconductors by SciTech Book News
 
 
 
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