exciton


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ex·ci·ton

 (ĕk′sĭ-tŏn′, -sī-)
n.
An electrically neutral excited state of an insulator or semiconductor, often regarded as a bound state of an electron and a hole.

exciton

(ˈɛksaɪˌtɒn)
n
(General Physics) a mobile neutral entity in a crystalline solid consisting of an excited electron bound to the hole produced by its excitation
[C20: from excit(ation) + -on]
Translations
Exziton
eccitone
엑시톤여기자
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References in periodicals archive ?
Other aspects of physical chemistry that studies discuss include atmospheric spectroscopy and photochemistry at environmental water interfaces, single-photon sources in atomically thin materials, the ultrafast dynamic microscopy of carrier and exciton transport, multi-reference theories of electron correlation based on the driven similarity renormalization group, chiral plasmonic nanostructures enabled by bottom-up approaches, and optical and physical probing of thermal processes in semiconductor and plasmonic nanocrystals.
All modern solar panels operate by the same process -- one photon of light generates one exciton, Campos explained.
As part of the study, the important physical parameters of exciton binding energy of carbon materials were obtained for the first time, and Louzhen Fan.
Carusotto, "Excitations in a nonequilibrium bose-einstein condensate of exciton polaritons," Physical Review Letters, vol.
The exciton state populates [approximately equal to] 58% of the states for simulation A, [approximately equal to] 32% for simulation B, and [approximately equal to] 52% for simulation C.
The limiting factors of PCE are the stabilities, ability of harvesting the photon flux from the sun, effective exciton separation, and carrier mobilities.
In fact, it is known that impact ionisation in bulk semiconductor materials allows for hot excitons to relax to the valence band, in turn exciting another exciton (Figure 3).
If energy (for e.g., photons) that is greater than or equal to the band gap is supplied to such QDs, then an electron-hole pair is created, and this electron-hole pair forms an exciton. Such exciton acts like pseudohydrogen atoms, and for a brief period of time, they move together through a distance that is called the diffusion length [3-5].
In the exciton-exciton scattering P-band lasing, two excited excitons interact with each other such that one exciton is induced to emit radiation and the other gets excited to higher excitonic state.
Unlike conventional passive photonic band-gap, when excitons in quantum wells with Bragg frequency are affected by strong optical pump pulse at a frequency close to the frequency of exciton, it is expected that the position and width of photonic band-gap modulated through the Stark effect and the reflectivity to not be in resonance with the exciton anymore.
Clearly, the initial exciton density approaches charge carrier densities comparable to those in typical organic solar cells under normal operation (approximately [10.sup.16] to [10.sup.17] [cm.sup.-3]) [22].