2010
DOI: 10.1134/s1063782610070109
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Evolution of exciton states near the percolation threshold in two-phase systems with II–VI semiconductor quantum dots

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Cited by 17 publications
(13 citation statements)
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“…The size dispersion of QDs means that the radii of some of the QDs exceed the critical radius (R c ≈ 30 Å in the case under consideration) and, there fore, there is no exciton quantum confinement effect in these QDs [13]. As already shown in [13][14][15], the quantum confinement effect disappears through the trapping of one or both charge carriers of the exciton into the external polarization well (dielectric trap). Such a dielectric trap is shown in Fig.…”
Section: Discussionmentioning
confidence: 89%
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“…The size dispersion of QDs means that the radii of some of the QDs exceed the critical radius (R c ≈ 30 Å in the case under consideration) and, there fore, there is no exciton quantum confinement effect in these QDs [13]. As already shown in [13][14][15], the quantum confinement effect disappears through the trapping of one or both charge carriers of the exciton into the external polarization well (dielectric trap). Such a dielectric trap is shown in Fig.…”
Section: Discussionmentioning
confidence: 89%
“…In [13][14][15], from analysis of the results, we established the formation of a percolation transition of excitons in the array of QDs and sug gested a mechanism for such a transition in a two phase system with an interphase permittivity mis match. However, in [13][14][15], we did not discuss the manifestation of structural elements of the percolation cluster in the PL spectra of the samples. That is why investigation of this issue is the principal goal of the study presented here.…”
Section: Methodsmentioning
confidence: 90%
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