Photoluminescence of CdHgTe based nanoheterostructures View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2010-12-29

AUTHORS

K. D. Mynbaev, N. L. Bazhenov, V. I. Ivanov-Omskiĭ, A. V. Shilyaev, V. S. Varavin, N. N. Mikhailov, S. A. Dvoretsky, Yu. G. Sidorov

ABSTRACT

We have studied the photoluminescence (PL) spectra of CdxHg1 − xTe/CdyHg1 − yTe nanohetero-structures grown by molecular beam epitaxy on CdTe/ZnTe/GaAs substrates. The width of potential wells in the structures was varied within d = 12−200 nm and the material composition was changed within x ∼ 0.25–0.40 in the well and y ∼ 0.68–0.82 in the barrier layers. The PL spectra of samples with d ≤ 33 nm exhibit transitions between quantum confinement levels. The samples with d > 50 nm display the PL due to excitons localized on composition fluctuations, which is characteristic of CdxHg1 − xTe epilayers with thicknesses above 3 μm. It is established that the exciton PL band in CdxHg1 − xTe exhibit broadening that is determined both by stochastic fluctuations of the composition and by its macroscopic inhomogeneities. More... »

PAGES

1099-1102

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1063785010120102

DOI

http://dx.doi.org/10.1134/s1063785010120102

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1023781401


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