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Heterostructures with CdTe/ZnTe quantum dots for single photon emitters grown by molecular beam epitaxy

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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.

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Authors and Affiliations

  1. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    S. V. Sorokin, I. V. Sedova, S. V. Gronin, K. G. Belyaev, M. V. Rakhlin, A. A. Toropov & S. V. Ivanov

  2. St. Petersburg Academic University–Nanotechnology Research and Education Centre, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    I. S. Mukhin

  3. St. Petersburg National University of Information Technology, Mechanics and Optics (ITMO University), St. Petersburg, 197101, Russia

    I. S. Mukhin

Authors
  1. S. V. Sorokin
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  2. I. V. Sedova
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  3. S. V. Gronin
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  4. K. G. Belyaev
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  5. M. V. Rakhlin
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  6. A. A. Toropov
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  7. I. S. Mukhin
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  8. S. V. Ivanov
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Corresponding author

Correspondence to S. V. Sorokin.

Additional information

Original Russian Text © S.V. Sorokin, I.V. Sedova, S.V. Gronin, K.G. Belyaev, M.V. Rakhlin, A.A. Toropov, I.S. Mukhin, S.V. Ivanov, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 24, pp. 64–71.

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Sorokin, S.V., Sedova, I.V., Gronin, S.V. et al. Heterostructures with CdTe/ZnTe quantum dots for single photon emitters grown by molecular beam epitaxy. Tech. Phys. Lett. 42, 1163–1166 (2016). https://doi.org/10.1134/S1063785016120221

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  • DOI: https://doi.org/10.1134/S1063785016120221

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