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

Yashchenok, AM, Gorin, DA, Badylevich, M, Serdobintsev, AA, Bedard, M, Fedorenko, YG, Khomutov, GB, Grigoriev, DO and Möhwald, H (2010) Impact of magnetite nanoparticle incorporation on optical and electrical properties of nanocomposite LbL assemblies. Phys Chem Chem Phys, 12 (35). pp. 10469-10475.

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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.

Item Type: Article
Authors :
NameEmailORCID
Yashchenok, AMUNSPECIFIEDUNSPECIFIED
Gorin, DAUNSPECIFIEDUNSPECIFIED
Badylevich, MUNSPECIFIEDUNSPECIFIED
Serdobintsev, AAUNSPECIFIEDUNSPECIFIED
Bedard, MUNSPECIFIEDUNSPECIFIED
Fedorenko, YGy.fedorenko@surrey.ac.ukUNSPECIFIED
Khomutov, GBUNSPECIFIEDUNSPECIFIED
Grigoriev, DOUNSPECIFIEDUNSPECIFIED
Möhwald, HUNSPECIFIEDUNSPECIFIED
Date : 21 September 2010
Identification Number : 10.1039/c004242k
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:47
Last Modified : 17 May 2017 12:47
URI: http://epubs.surrey.ac.uk/id/eprint/836712

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