Effect of cadmium-selenide quantum dots on the conductivity and photoconductivity of nanocrystalline indium oxide
- Authors: Il’in A.S.1,2,3, Fantina N.P.1, Martyshov M.N.1,2, Forsh P.A.1,2, Chizhov A.S.4, Rumyantseva M.N.4, Gaskov A.M.4, Kashkarov P.K.1,2,3
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Affiliations:
- Faculty of Physics
- Russian Research Centre Kurchatov Institute
- Moscow Institute of Physics and Technology
- Faculty of Chemistry
- Issue: Vol 50, No 5 (2016)
- Pages: 607-611
- Section: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/197075
- DOI: https://doi.org/10.1134/S1063782616050110
- ID: 197075
Cite item
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.
About the authors
A. S. Il’in
Faculty of Physics; Russian Research Centre Kurchatov Institute; Moscow Institute of Physics and Technology
Author for correspondence.
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991; Moscow, 123182; Dolgoprudnyi, Moscow oblast, 141700
N. P. Fantina
Faculty of Physics
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991
M. N. Martyshov
Faculty of Physics; Russian Research Centre Kurchatov Institute
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991; Moscow, 123182
P. A. Forsh
Faculty of Physics; Russian Research Centre Kurchatov Institute
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991; Moscow, 123182
A. S. Chizhov
Faculty of Chemistry
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991
M. N. Rumyantseva
Faculty of Chemistry
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991
A. M. Gaskov
Faculty of Chemistry
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991
P. K. Kashkarov
Faculty of Physics; Russian Research Centre Kurchatov Institute; Moscow Institute of Physics and Technology
Email: as.ilin@physics.msu.ru
Russian Federation, Moscow, 119991; Moscow, 123182; Dolgoprudnyi, Moscow oblast, 141700