Enviar artigo por via de e-mail Emission of Light from Compositionally Graded CdSSe/CdS Heterostructure with Smooth Near-surface Excitonic Potential
- Autores: Grigorieva N.1, Sel’kin A.1,2
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Afiliações:
- Saint-Petersburg State University
- Ioffe Institute
- Edição: Volume 53, Nº 16 (2019)
- Páginas: 2052-2054
- Seção: 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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Resumo
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.
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Sobre autores
N. Grigorieva
Saint-Petersburg State University
Autor responsável pela correspondência
Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 194034
A. Sel’kin
Saint-Petersburg State University; Ioffe Institute
Autor responsável pela correspondência
Email: alexander.selkin@mail.ioffe.ru
Rússia, St. Petersburg, 194034; St. Petersburg, 194021
