Electrical properties of carbon nanotubes / WS2 nanotubes (nanoparticles) hybrid films
https://doi.org/10.17586/2220-8054-2016-7-1-37-43
Abstract
DC and AC electrical properties of hybrid films, consisting of carbon nanotubes and tungsten disulfide nanotubes (and fullerene like nanoparticles) were studied within the 2 – 300 K temperature range and over the 20 Hz – 1 MHz frequency range. The temperature dependences of the resistance R(T) exhibit behavior typical for the fluctuation-induced tunneling model in the intermediate temperature range. Analysis of the dependences of real and imaginary components of the impedance on the frequency (Z’(f) and Z”(f)) demonstrates the rising role of the contact barriers between carbon nanotubes inside hybrid films, consisting of the carbon nanotubes and inorganic tungsten disulfide nanotubes as the temperature was decreased. The active component of the impedance was found to prevail in the AC electrical properties of the hybrid films, consisting of multi-wall carbon nanotubes and WS2 nanoparticles over the entire available temperature range.
Keywords
Supporting agencies: This work was supported by Belarusian National Research Program “Nanomaterials and Nanotechnologies” (grant No. 2.2.02), by FP7 project PIRSES-2012-318617 FAEMCAR and FP7-316633 POCAONTAS, Tomsk State University Competitiveness Improvement Program, and Federal Focus program of Ministry of Education and Science of Russian Federation # 14.577.21.0006 (project ID RFMEFI57714X0006). We are thankful for Prof. Stefano Bellucci (LNF INFN Italy) for fruitful discussions, valuable comments, and providing us with MWCNT samples.
About the Authors
V. K. Ksenevich
Department of Physics, Belarusian State University
Belarus
Belarus
Minsk
N. I. Gorbachuk
Department of Physics, Belarusian State University
Belarus
Belarus
Minsk
Ho Viet
Department of Physics, Belarusian State University
Belarus
Belarus
Minsk
M. V. Shuba
Research Institute for Nuclear Problems, Belarusian State University
Belarus
Belarus
Minsk
P. P. Kuzhir
Research Institute for Nuclear Problems, Belarusian State University
Belarus
Belarus
Minsk
S. A. Maksimenko
Research Institute for Nuclear Problems, Belarusian State University
Belarus
Belarus
Minsk
A. G. Paddubskaya
Center for Physical Sciences and Technology
Lithuania
Lithuania
Vilnius
G. Valusis
Center for Physical Sciences and Technology
Lithuania
Lithuania
Vilnius
A. D. Wieck
Department of Physics and Astronomy, Bochum Ruhr-University
Germany
Germany
Bochum
A. Zak
Department of Sciences, Holon Institute of Technology
Israel
Israel
Holon
R. Tenne
Department of Materials and Interfaces, Weizmann Institute of Science
Israel
Israel
Rehovot
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Review
For citations:
Ksenevich V.K., Gorbachuk N.I., Viet H., Shuba M.V., Kuzhir P.P., Maksimenko S.A., Paddubskaya A.G., Valusis G., Wieck A.D., Zak A., Tenne R. Electrical properties of carbon nanotubes / WS2 nanotubes (nanoparticles) hybrid films. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(1):37-43. https://doi.org/10.17586/2220-8054-2016-7-1-37-43
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