Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies

Alexey M. Yashchenok, Dmitry A. Gorin, Mikhail Badylevich, Alexey A. Serdobintsev, Matthieu Bedard, Yanina G. Fedorenko, Gennady B. Khomutov, Dmitri O. Grigoriev, Helmuth Möhwald

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Optical and electrical properties of polyelectrolyte/iron oxide nanocomposite planar films on silicon substrates were investigated for different amount of iron oxide nanoparticles incorporated in the films. The nanocomposite assemblies prepared by the layer-by-layer assembly technique were characterized by ellipsometry, atomic force microscopy, and secondary ion mass-spectrometry. Absorption spectra of the films reveal a shift of the optical absorption edge to higher energy when the number of deposited layers decreases. Capacitance-voltage and current-voltage measurements were applied to study the electrical properties of metal-oxide-semiconductor structures prepared by thermal evaporation of gold electrodes on nanocomposite films. The capacitance-voltage measurements show that the dielectric constant of the film increases with the number of deposited layers and the fixed charge and the trapped charge densities have a negative sign.

Original languageEnglish
Pages (from-to)10469-10475
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume12
Issue number35
DOIs
Publication statusPublished - 21 Sep 2010
Externally publishedYes

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Magnetite Nanoparticles
magnetite
assemblies
Nanocomposites
nanocomposites
Electric properties
Optical properties
electrical properties
optical properties
nanoparticles
Voltage measurement
iron oxides
electrical measurement
capacitance
Nanocomposite films
Capacitance measurement
Thermal evaporation
Ellipsometry
Electric current measurement
Silicon

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Yashchenok, A. M., Gorin, D. A., Badylevich, M., Serdobintsev, A. A., Bedard, M., Fedorenko, Y. G., ... Möhwald, H. (2010). Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies. Physical Chemistry Chemical Physics, 12(35), 10469-10475. https://doi.org/10.1039/c004242k

Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies. / Yashchenok, Alexey M.; Gorin, Dmitry A.; Badylevich, Mikhail; Serdobintsev, Alexey A.; Bedard, Matthieu; Fedorenko, Yanina G.; Khomutov, Gennady B.; Grigoriev, Dmitri O.; Möhwald, Helmuth.

In: Physical Chemistry Chemical Physics, Vol. 12, No. 35, 21.09.2010, p. 10469-10475.

Research output: Contribution to journalArticle

Yashchenok, AM, Gorin, DA, Badylevich, M, Serdobintsev, AA, Bedard, M, Fedorenko, YG, Khomutov, GB, Grigoriev, DO & Möhwald, H 2010, 'Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies', Physical Chemistry Chemical Physics, vol. 12, no. 35, pp. 10469-10475. https://doi.org/10.1039/c004242k
Yashchenok AM, Gorin DA, Badylevich M, Serdobintsev AA, Bedard M, Fedorenko YG et al. Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies. Physical Chemistry Chemical Physics. 2010 Sep 21;12(35):10469-10475. https://doi.org/10.1039/c004242k
Yashchenok, Alexey M. ; Gorin, Dmitry A. ; Badylevich, Mikhail ; Serdobintsev, Alexey A. ; Bedard, Matthieu ; Fedorenko, Yanina G. ; Khomutov, Gennady B. ; Grigoriev, Dmitri O. ; Möhwald, Helmuth. / Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies. In: Physical Chemistry Chemical Physics. 2010 ; Vol. 12, No. 35. pp. 10469-10475.
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