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Fizika Tverdogo Tela, 2023, Volume 65, Issue 4, Pages 624–628
DOI: https://doi.org/10.21883/FTT.2023.04.55300.533 (Mi ftt10645) 		 
Lattice dynamics

Influence of Si nanocrystals on polyaniline conductivity

L. N. Grigor'evaa, A. S. Ilyinab, M. N. Martyshovb, K. A. Savina, P. A. Forshab, P. K. Kashkarovb

a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
b Lomonosov Moscow State University, Moscow, Russia
Full-text PDF (365 kB)
DOI: https://doi.org/10.21883/FTT.2023.04.55300.533
Abstract: The electrical properties of a complex of polyaniline with poly-2-acrylamido-2-methyl-1-propanesulfonic acid (PANI-PAMPSA) and composites based on it with the addition of silicon nanocrystals (nc-Si) ranging in size from 30 nm to 100 nm are studied in this article. It was found that the dc conductivity of PANI-PAMSA decreases with the introduction of nc-Si. Investigations of alternating current showed that the frequency dependence of the conductivity of the polymer and composites based on it obeys the Jonscher law, which indicates a significant role of the hopping mechanism of conductivity. A mechanism of PANI-PAMPSA conductivity reducing by incorporation of silicon nanocrystals is proposed. The mechanism is associated with energy distribution of localized states in the band gap of the polymer changing and is independent of the nc-Si synthesis method.
Keywords: polyaniline, silicon nanoparticles, conductivity, nanocomposites.
Funding agency Grant number
Russian Science Foundation 19-79-30086
This work was supported by the Russian Science Foundation grant 19-79-30086.
Received: 23.11.2022
Revised: 23.11.2022
Accepted: 22.01.2023
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: L. N. Grigor'eva, A. S. Ilyin, M. N. Martyshov, K. A. Savin, P. A. Forsh, P. K. Kashkarov, “Influence of Si nanocrystals on polyaniline conductivity”, Fizika Tverdogo Tela, 65:4 (2023), 624–628
Citation in format AMSBIB
\Bibitem{GriIlyMar23}
\by L.~N.~Grigor'eva, A.~S.~Ilyin, M.~N.~Martyshov, K.~A.~Savin, P.~A.~Forsh, P.~K.~Kashkarov
\paper Influence of Si nanocrystals on polyaniline conductivity
\jour Fizika Tverdogo Tela
\yr 2023
\vol 65
\issue 4
\pages 624--628
\mathnet{http://mi.mathnet.ru/ftt10645}
\crossref{https://doi.org/10.21883/FTT.2023.04.55300.533}
\elib{https://elibrary.ru/item.asp?id=53737623}
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