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arXiv · 1901.09636

X-ray scattering characterization of iron oxide nanoparticles Langmuir film on water surface and on a solid substrate

V. Ukleev·A. Khassanov·I. Snigireva·O. Konovalov·A. Vorobiev
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Abstract

In the present study we compare a structure of a Langmuir film assembled from magnetic iron oxide nanoparticles on water surface and a structure of the same film after its transfer to a solid substrate by the Langmuir-Schaefer method. In contrast to most of related studies, where different techniques are used to characterize the films before and after the deposition, we use the same combination of X-ray reflectometry and Grazing Incidence Small-Angle X-ray scattering. In both cases -- on a liquid and on a solid substrate -- the film was identified as a well-ordered monolayer of the nanoparticles laterally organized in a two-dimensional hexagonal lattice. However parameters of the lattice were found to be slightly different depending on the type of the substrate. It is also demonstrated that Langmuir-Schaefer technique is the right way for deposition of such kind of the particles on a solid substrate.

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V. Ukleev, A. Khassanov, I. Snigireva, O. Konovalov, A. Vorobiev. 2019-01-28. X-ray scattering characterization of iron oxide nanoparticles Langmuir film on water surface and on a solid substrate. https://doi.org/10.1016/j.tsf.2016.07.060

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