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Effect of cadmium-selenide quantum dots on the conductivity and photoconductivity of nanocrystalline indium oxide

  • Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
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Abstract

The effect of cadmium-selenide quantum dots addition on the electrical and photoelectric properties of nanocrystalline indium oxide with nanocrystal dimensions in the range from 7 to 40 nm is studied. By impedance spectroscopy, it is shown that the addition of quantum dots substantially influences the resistance of interfaces between In2O3 crystals. A change in the character of the photoconductivity spectrum of In2O3 upon the addition of CdSe quantum dots is detected, and it is established that this change depends on the In2O3-nanocrystal dimensions. An energy band diagram is proposed to explain the observed change in the photoconductivity spectrum of In2O3 upon the addition of CdSe quantum dots.

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Authors and Affiliations

  1. Faculty of Physics, Moscow State University, Moscow, 119991, Russia

    A. S. Il’in, N. P. Fantina, M. N. Martyshov, P. A. Forsh & P. K. Kashkarov

  2. Russian Research Centre Kurchatov Institute, Moscow, 123182, Russia

    A. S. Il’in, M. N. Martyshov, P. A. Forsh & P. K. Kashkarov

  3. Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow oblast, 141700, Russia

    A. S. Il’in & P. K. Kashkarov

  4. Faculty of Chemistry, Moscow State University, Moscow, 119991, Russia

    A. S. Chizhov, M. N. Rumyantseva & A. M. Gaskov

Authors
  1. A. S. Il’in
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  2. N. P. Fantina
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  3. M. N. Martyshov
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  4. P. A. Forsh
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  5. A. S. Chizhov
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  6. M. N. Rumyantseva
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  7. A. M. Gaskov
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  8. P. K. Kashkarov
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Corresponding author

Correspondence to A. S. Il’in.

Additional information

Original Russian Text © A.S. Il’in, N.P. Fantina, M.N. Martyshov, P.A. Forsh, A.S. Chizhov, M.N. Rumyantseva, A.M. Gaskov, P.K. Kashkarov, 2016, published in Fizika i Tekhnika Poluprovodnikov, 2016, Vol. 50, No. 5, pp. 619–623.

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Il’in, A.S., Fantina, N.P., Martyshov, M.N. et al. Effect of cadmium-selenide quantum dots on the conductivity and photoconductivity of nanocrystalline indium oxide. Semiconductors 50, 607–611 (2016). https://doi.org/10.1134/S1063782616050110

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  • DOI: https://doi.org/10.1134/S1063782616050110

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