Abstract
Films of single-walled carbon nanotubes are promising for various electro-optical applications. Their engineering at the nanoscale requires a robust method of the contactless, non-invasive determination of structural properties. Here we present a study that uses specular reflectometry for this purpose, namely to determine the film thickness. Analysis of the reflection coefficient of neutrons, as well as X-rays, makes it possible to obtain a normal density profile and thereby trace the effect of densification of films of single-walled carbon nanotubes by ethanol drop casting. The paper summarizes the first experience of using combined neutron and X-ray approach in relation to low-density carbon films. Further steps for the development of the technique are discussed.
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Funding
This work was supported by the Ministry of Science and Higher Education of the Russian Federation (project no. FZSR-2020-0007 within the framework of the state assignment no. 075-03-2020-097/1). The measurements based on the FLNP JINR infrastructure are also gratefully acknowledged.
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Tomchuk, O.V., Krasnikov, D.V., Kosiachkin, Y.N. et al. Specular Reflectometry Studies of Alcohol-Induced Densification for Thin Films of Single-Walled Carbon Nanotubes. J. Surf. Investig. 15, 773–776 (2021). https://doi.org/10.1134/S1027451021040212
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DOI: https://doi.org/10.1134/S1027451021040212