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3D versus 1D quantum confinement in coherently strained CdS/ZnS quantum structures

Woggon, U., Gindele, F., Petri, W., Hetterich, M., Grün, M., Klingshirn, C., Langbein, Wolfgang Werner, Hvam, J. M., Kümell, T., Bacher, G. and Forchel, A. 1998. 3D versus 1D quantum confinement in coherently strained CdS/ZnS quantum structures. physica status solidi (b) 206 (1) , pp. 501-506. 10.1002/(SICI)1521-3951(199803)206:1<501::AID-PSSB501>3.0.CO;2-G

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Monolayer fluctuations in ultrathin, coherently strained CdS/ZnS quantum structures result in a very strong localization of excitons. The deepest localized excitons can be considered as individual, decoupled and three-dimensionally confined. Consequently, fingerprints of zero-dimensionality are found in the optical spectra like single, ultranarrow luminescence lines in micro-photoluminescence and spectrally broad optical gain in the deep blue spectral range. The exchange splitting is proven and a strong enhancement over the bulk value is observed.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Wiley
ISSN: 1521-3951
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Last Modified: 04 Jun 2017 08:01

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