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The Influence of EL2 Centers on the Photoelectric Response of an Array of Radial GaAs/AlGaAs Nanowires

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Abstract

We have studied the role of EL2 centers in formation of the photoelectric response of an array of radial n-type GaAs/AlxGa1 –xAs (x = 0.3) nanowires (NWs) grown by molecular beam epitaxy on a p-type silicon substrate. Results revealed a significant decrease in the time of NW photoresponse recovery as compared to that in a bulk crystal upon the transition of EL2 centers from a metastable nonactive state to the normal ground state.

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Funding

This work was supported in part by the Russian Science Foundation, project no. 18-72-10047.

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Authors and Affiliations

  1. St. Petersburg State University, 199034, St. Petersburg, Russia

    N. R. Grigorieva, I. V. Shtrom, R. V. Grigoriev & N. V. Sibirev

  2. Institute for Analytical Instrumentation, Russian Academy of Sciences, 198095, St. Petersburg, Russia

    I. V. Shtrom, I. P. Soshnikov & Yu. B. Samsonenko

  3. St. Petersburg Academic University, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    I. P. Soshnikov & G. E. Cirlin

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

    I. P. Soshnikov

  5. St. Petersburg University of Information Technologies, Mechanics, and Optics (ITMO University), 197101, St. Petersburg, Russia

    R. R. Reznik & N. V. Sibirev

  6. St. Petersburg Electrotechnical University LETI, 197376, St. Petersburg, Russia

    G. E. Cirlin

Authors
  1. N. R. Grigorieva
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  2. I. V. Shtrom
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  3. R. V. Grigoriev
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  4. I. P. Soshnikov
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  5. R. R. Reznik
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  6. Yu. B. Samsonenko
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  7. N. V. Sibirev
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  8. G. E. Cirlin
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Corresponding author

Correspondence to N. R. Grigorieva.

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Translated by P. Pozdeev

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Grigorieva, N.R., Shtrom, I.V., Grigoriev, R.V. et al. The Influence of EL2 Centers on the Photoelectric Response of an Array of Radial GaAs/AlGaAs Nanowires. Tech. Phys. Lett. 45, 835–838 (2019). https://doi.org/10.1134/S1063785019080212

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