Optical properties of CdTe/ZnTe structures with thin CdTe layers

The optical properties of series of CdTe/ZnTe heterostructures with two built-in planar CdTe inclusions of thickness 4.0 and 1.5 monolayers are investigated. The temperature behavior of the exciton luminescence intensity at above-barrier and under-barrier excitation depends on the ZnTe barrier thick...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-11, Vol.1400 (5), p.55046
Main Authors: Agekyan, V, Chukeev, M, Filosofov, N, Karczewski, G, Resnitsky, A, Serov, A
Format: Article
Language:English
Subjects:
Cadmium tellurides
Excitation
Excitation spectra
Excitons
Heterostructures
Inclusions
Luminescence
Monolayers
Optical properties
Physics
Thickness
Thin films
Zinc tellurides
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Summary:The optical properties of series of CdTe/ZnTe heterostructures with two built-in planar CdTe inclusions of thickness 4.0 and 1.5 monolayers are investigated. The temperature behavior of the exciton luminescence intensity at above-barrier and under-barrier excitation depends on the ZnTe barrier thickness which varies from 15 to 55 monolayers. It occurs that the shape of exciton luminescence bands changes strongly under the increasing optical excitation. The excitation luminescence spectra are studied in the temperature range 5 - 80 K.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1400/5/055046