Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons

S.P. Belyaev, S.K. Gordeev, V.A. Chekanov, R.F. Konopleva, I.V. Golosovsky, S.B. Korchagina, I.A. Denisov, P.I. Belobrov

Research output: Contribution to journalArticleResearch

Abstract

The electrophysical properties of nanoporous carbon composites consisting of a nanometer-sized pyrolytic carbon matrix and nanodiamonds have been analyzed. It has been shown that the power-law dependence of the electrical resistivity on the thickness of the pyrolytic carbon layer D on a log-log scale has an inflection for D = 1 . It has been found that the temperature dependence of the electrical resistivity of the nanocomposite is described by an exponential function with an exponent of 1/4 for both unirradiated samples and samples irradiated with fast neutrons. This is characteristic of variable-range hopping conductivity in the case of strong localization in systems with semiconductor conductivity in the presence of a local disorder. With an increase in the neutron fluence, the electrical resistivity of the studied material changes very significantly (by several hundred percent) and nonmonotonically. This result is associated with the transformation of the structure of the graphite-like matrix and with pos
Original languageEnglish
Pages (from-to)152-156
JournalPhysics of the Solid State
Volume56
Issue number1
DOIs
StatePublished - 2014

Cite this

Belyaev, S. P., Gordeev, S. K., Chekanov, V. A., Konopleva, R. F., Golosovsky, I. V., Korchagina, S. B., ... Belobrov, P. I. (2014). Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons. Physics of the Solid State, 56(1), 152-156. https://doi.org/10.1134/S1063783414010028
Belyaev, S.P. ; Gordeev, S.K. ; Chekanov, V.A. ; Konopleva, R.F. ; Golosovsky, I.V. ; Korchagina, S.B. ; Denisov, I.A. ; Belobrov, P.I. / Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons. In: Physics of the Solid State. 2014 ; Vol. 56, No. 1. pp. 152-156.
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title = "Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons",
abstract = "The electrophysical properties of nanoporous carbon composites consisting of a nanometer-sized pyrolytic carbon matrix and nanodiamonds have been analyzed. It has been shown that the power-law dependence of the electrical resistivity on the thickness of the pyrolytic carbon layer D on a log-log scale has an inflection for D = 1 . It has been found that the temperature dependence of the electrical resistivity of the nanocomposite is described by an exponential function with an exponent of 1/4 for both unirradiated samples and samples irradiated with fast neutrons. This is characteristic of variable-range hopping conductivity in the case of strong localization in systems with semiconductor conductivity in the presence of a local disorder. With an increase in the neutron fluence, the electrical resistivity of the studied material changes very significantly (by several hundred percent) and nonmonotonically. This result is associated with the transformation of the structure of the graphite-like matrix and with pos",
author = "S.P. Belyaev and S.K. Gordeev and V.A. Chekanov and R.F. Konopleva and I.V. Golosovsky and S.B. Korchagina and I.A. Denisov and P.I. Belobrov",
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Belyaev, SP, Gordeev, SK, Chekanov, VA, Konopleva, RF, Golosovsky, IV, Korchagina, SB, Denisov, IA & Belobrov, PI 2014, 'Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons' Physics of the Solid State, vol. 56, no. 1, pp. 152-156. https://doi.org/10.1134/S1063783414010028

Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons. / Belyaev, S.P.; Gordeev, S.K.; Chekanov, V.A.; Konopleva, R.F.; Golosovsky, I.V.; Korchagina, S.B.; Denisov, I.A.; Belobrov, P.I.

In: Physics of the Solid State, Vol. 56, No. 1, 2014, p. 152-156.

Research output: Contribution to journalArticleResearch

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T1 - Electrophysical properties of carbon nanocomposites based on nanodiamonds irradiated with fast neutrons

AU - Belyaev, S.P.

AU - Gordeev, S.K.

AU - Chekanov, V.A.

AU - Konopleva, R.F.

AU - Golosovsky, I.V.

AU - Korchagina, S.B.

AU - Denisov, I.A.

AU - Belobrov, P.I.

PY - 2014

Y1 - 2014

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AB - The electrophysical properties of nanoporous carbon composites consisting of a nanometer-sized pyrolytic carbon matrix and nanodiamonds have been analyzed. It has been shown that the power-law dependence of the electrical resistivity on the thickness of the pyrolytic carbon layer D on a log-log scale has an inflection for D = 1 . It has been found that the temperature dependence of the electrical resistivity of the nanocomposite is described by an exponential function with an exponent of 1/4 for both unirradiated samples and samples irradiated with fast neutrons. This is characteristic of variable-range hopping conductivity in the case of strong localization in systems with semiconductor conductivity in the presence of a local disorder. With an increase in the neutron fluence, the electrical resistivity of the studied material changes very significantly (by several hundred percent) and nonmonotonically. This result is associated with the transformation of the structure of the graphite-like matrix and with pos

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