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 ORCID: https://orcid.org/0000-0001-9786-1023, 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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Abstract

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:	Schools > Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	Wiley
ISSN:	1521-3951
Last Modified:	07 Feb 2025 11:18
URI:	https://orca.cardiff.ac.uk/id/eprint/71762

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