Heterostructures with CdTe/ZnTe quantum dots for single photon emitters grown by molecular beam epitaxy
- Авторы: Sorokin S.1, Sedova I.1, Gronin S.1, Belyaev K.1, Rakhlin M.1, Toropov A.1, Mukhin I.2,3, Ivanov S.1
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Учреждения:
- Ioffe Physical Technical Institute
- St. Petersburg Academic University–Nanotechnology Research and Education Centre
- St. Petersburg National University of Information Technology, Mechanics and Optics (ITMO University)
- Выпуск: Том 42, № 12 (2016)
- Страницы: 1163-1166
- Раздел: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/202137
- DOI: https://doi.org/10.1134/S1063785016120221
- ID: 202137
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Аннотация
We report on the molecular beam epitaxy (MBE) of heterostructures with CdTe/ZnTe quantum dots (QDs) with relatively low surface density, which could be used as single-photon emitters. The QDs were formed on the surface of a 3.1- to 4.5-monolayer-thick two-dimensional strained CdTe layer by depositing amorphous Te layer and its fast thermal desorption. Subsequent thermal annealing of the surface with QDs in the absence of external Te flux led to strong broadening and short-wavelength shift of the QD photoluminescence (PL) peak. Measurement of the micro-PL spectra of individual CdTe/ZnTe quantum dots in fabricated mesastructures with a diameter of 200—1000 nm allowed estimation of the QD surface density as ~1010 cm–2.
Об авторах
S. Sorokin
Ioffe Physical Technical Institute
Автор, ответственный за переписку.
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021
I. Sedova
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021
S. Gronin
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021
K. Belyaev
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021
M. Rakhlin
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021
A. Toropov
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021
I. Mukhin
St. Petersburg Academic University–Nanotechnology Research and Education Centre; St. Petersburg National University of Information Technology, Mechanics and Optics (ITMO University)
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
S. Ivanov
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Россия, St. Petersburg, 194021