Heterostructures with CdTe/ZnTe quantum dots for single photon emitters grown by molecular beam epitaxy
- Authors: Sorokin S.V.1, Sedova I.V.1, Gronin S.V.1, Belyaev K.G.1, Rakhlin M.V.1, Toropov A.A.1, Mukhin I.S.2,3, Ivanov S.V.1
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Affiliations:
- 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)
- Issue: Vol 42, No 12 (2016)
- Pages: 1163-1166
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/202137
- DOI: https://doi.org/10.1134/S1063785016120221
- ID: 202137
Cite item
Abstract
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.
About the authors
S. V. Sorokin
Ioffe Physical Technical Institute
Author for correspondence.
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021
I. V. Sedova
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021
S. V. Gronin
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021
K. G. Belyaev
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021
M. V. Rakhlin
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021
A. A. Toropov
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021
I. S. 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
Russian Federation, St. Petersburg, 194021; St. Petersburg, 197101
S. V. Ivanov
Ioffe Physical Technical Institute
Email: sorokin@beam.ioffe.ru
Russian Federation, St. Petersburg, 194021