Polarization of the photoluminescence of quantum dots incorporated into quantum wires
- Авторы: Platonov A.1, Kochereshko V.1,2, Kats V.1, Cirlin G.1, Bouravleuv A.1, Avdoshina D.1, Delga A.3, Besombes L.3, Mariette H.3
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Учреждения:
- Ioffe Physical–Technical Institute
- St. Petersburg State University
- CEA-CNRS group “Nanophysique et Semiconducteurs”
- Выпуск: Том 50, № 12 (2016)
- Страницы: 1647-1650
- Раздел: XX International Symposium “Nanophysics and Nanoelectronics”, Nizhny Novgorod, March 14–18, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/198974
- DOI: https://doi.org/10.1134/S1063782616120150
- ID: 198974
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Аннотация
The photoluminescence spectra of individual quantum dots incorporated into a quantum wire are studied. From the behavior of the spectra in a magnetic field, it is possible to estimate the exciton binding energy in a quantum dot incorporated into a quantum wire. It is found that the exciton photoluminescence signal emitted from a quantum dot along the direction of the nanowire axis is linearly polarized. At the same time, the photoluminescence signal propagating in the direction orthogonal to the nanowire axis is practically unpolarized. The experimentally observed effect is attributed to the nonaxial arrangement of the dot in the wire under conditions of a huge increase in the exciton binding energy due to the effect of the image potential on the exciton.
Об авторах
A. Platonov
Ioffe Physical–Technical Institute
Автор, ответственный за переписку.
Email: alexei.platonov@mail.ioffe.ru
Россия, St. Petersburg, 194021
V. Kochereshko
Ioffe Physical–Technical Institute; St. Petersburg State University
Email: alexei.platonov@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 199034
V. Kats
Ioffe Physical–Technical Institute
Email: alexei.platonov@mail.ioffe.ru
Россия, St. Petersburg, 194021
G. Cirlin
Ioffe Physical–Technical Institute
Email: alexei.platonov@mail.ioffe.ru
Россия, St. Petersburg, 194021
A. Bouravleuv
Ioffe Physical–Technical Institute
Email: alexei.platonov@mail.ioffe.ru
Россия, St. Petersburg, 194021
D. Avdoshina
Ioffe Physical–Technical Institute
Email: alexei.platonov@mail.ioffe.ru
Россия, St. Petersburg, 194021
A. Delga
CEA-CNRS group “Nanophysique et Semiconducteurs”
Email: alexei.platonov@mail.ioffe.ru
Франция, Grenoble, F-38054
L. Besombes
CEA-CNRS group “Nanophysique et Semiconducteurs”
Email: alexei.platonov@mail.ioffe.ru
Франция, Grenoble, F-38054
H. Mariette
CEA-CNRS group “Nanophysique et Semiconducteurs”
Email: alexei.platonov@mail.ioffe.ru
Франция, Grenoble, F-38054