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Influence of the position of InGaAs quantum dot array on the spectral characteristics of AlGaAs/GaAs photovoltaic converters

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Abstract

Results of a comparative study of the internal quantum yield of AlGaAs/GaAs photovoltaic converters (PVCs) with variable position of the array of vertically coupled InGaAs quantum dots (QDs) are presented. It is established that the QD array placed immediately at the i-region/base interface does not change the PVC sensitivity compared to that for QDs arranged inside the i-region of the p-n junction. However, the QD array shifted to the base or the back potential barrier decreases the contribution of a base layer to the PVC photocurrent and reduces the photosensitivity of the QD-based medium.

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Authors and Affiliations

  1. Nanotechnology Research and Education Center, Russian Academy of Sciences, St. Petersburg Academic University, St. Petersburg, 195220, Russia

    S. A. Blokhin, A. M. Nadtochiy, S. A. Mintairov, N. A. Kalyuzhny, V. M. Emel’yanov, V. N. Nevedomsky, M. Z. Shvarts, M. V. Maximov, V. M. Lantratov, N. N. Ledentsov & V. M. Ustinov

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

    S. A. Blokhin, A. M. Nadtochiy, S. A. Mintairov, N. A. Kalyuzhny, V. M. Emel’yanov, V. N. Nevedomsky, M. Z. Shvarts, M. V. Maximov, V. M. Lantratov, N. N. Ledentsov & V. M. Ustinov

Authors
  1. S. A. Blokhin
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  2. A. M. Nadtochiy
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  3. S. A. Mintairov
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  4. N. A. Kalyuzhny
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  5. V. M. Emel’yanov
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  6. V. N. Nevedomsky
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  7. M. Z. Shvarts
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  8. M. V. Maximov
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  9. V. M. Lantratov
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  10. N. N. Ledentsov
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  11. V. M. Ustinov
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Corresponding author

Correspondence to S. A. Blokhin.

Additional information

Original Russian Text © S.A. Blokhin, A.M. Nadtochiy, S.A. Mintairov, N.A. Kalyuzhny, V.M. Emel’yanov, V.N. Nevedomsky, M.Z. Shvarts, M.V. Maximov, V.M. Lantratov, N.N. Ledentsov, V.M. Ustinov, 2012, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2012, Vol. 38, No. 22, pp. 43–49.

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Blokhin, S.A., Nadtochiy, A.M., Mintairov, S.A. et al. Influence of the position of InGaAs quantum dot array on the spectral characteristics of AlGaAs/GaAs photovoltaic converters. Tech. Phys. Lett. 38, 1024–1026 (2012). https://doi.org/10.1134/S1063785012110193

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  • DOI: https://doi.org/10.1134/S1063785012110193

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