Email this article Emission of Light from Compositionally Graded CdSSe/CdS Heterostructure with Smooth Near-surface Excitonic Potential
- Authors: Grigorieva N.R.1, Sel’kin A.V.1,2
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Affiliations:
- Saint-Petersburg State University
- Ioffe Institute
- Issue: Vol 53, No 16 (2019)
- Pages: 2052-2054
- Section: Excitons in Nanostructures
- URL: https://journals.rcsi.science/1063-7826/article/view/207580
- DOI: https://doi.org/10.1134/S1063782619120108
- ID: 207580
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Abstract
The low-temperature (T = 2 K) optical spectra (transmission, reflection and luminescence) of a compositionally graded CdS1 – xSex/CdS heterostructure with a low Se content near the sample surface were studied. The Morse potential model of the near-surface exciton potential well is shown to be in a good agreement with the experimental data on the excitonic reflection and makes it possible to identify the radiative recombination channels of free and localized excitons in the structure under study.
About the authors
N. R. Grigorieva
Saint-Petersburg State University
Author for correspondence.
Email: n.r.grigorieva@spbu.ru
Russian Federation, St. Petersburg, 194034
A. V. Sel’kin
Saint-Petersburg State University; Ioffe Institute
Author for correspondence.
Email: alexander.selkin@mail.ioffe.ru
Russian Federation, St. Petersburg, 194034; St. Petersburg, 194021
