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

Journal Article · Sun May 15 04:00:00 EDT 2016 · Semiconductors

DOI:https://doi.org/10.1134/S1063782616050110· OSTI ID:22645547

Fantina, N. P.; Martyshov, M. N.; Forsh, P. A. ^[1]; Chizhov, A. S.; Rumyantseva, M. N.; Gaskov, A. M. ^[2]; Kashkarov, P. K. ^[1]

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1. Moscow State University, Faculty of Physics (Russian Federation)
2. Moscow State University, Faculty of Chemistry (Russian Federation)

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 In{sub 2}O{sub 3} crystals. A change in the character of the photoconductivity spectrum of In{sub 2}O{sub 3} upon the addition of CdSe quantum dots is detected, and it is established that this change depends on the In{sub 2}O{sub 3}-nanocrystal dimensions. An energy band diagram is proposed to explain the observed change in the photoconductivity spectrum of In{sub 2}O{sub 3} upon the addition of CdSe quantum dots.

• OSTI ID: 22645547
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 5 Vol. 50; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CADMIUM SELENIDES
CRYSTALS
ELECTRONIC STRUCTURE
ENERGY SPECTRA
IMPEDANCE
INDIUM OXIDES
INTERFACES
PHOTOCONDUCTIVITY
QUANTUM DOTS
SPECTROSCOPY