Izvestiya of Saratov University.

Physics

ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

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Slepchenkov M. M., Murashko D. T., Kuksin A. V., Ryazanov R. M., Lebedev E. A., Shaman Y. P., Kitsyuk E. P., Gerasimenko A. Y., Glukhova O. E. Electrically conductive properties of graphene–nanotube hybrid/aluminium oxide interfaces. Izvestiya of Saratov University. Physics , 2025, vol. 25, iss. 3, pp. 356-368. DOI: 10.18500/1817-3020-2025-25-3-356-368, EDN: TXLUUP

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Published online: 
29.08.2025
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Language: 
Russian
Heading: 
Nanotechnologies, nanomaterials and metamaterials
Article type: 
Article
UDC: 
538.9
DOI: 
10.18500/1817-3020-2025-25-3-356-368
EDN: 
TXLUUP

Electrically conductive properties of graphene–nanotube hybrid/aluminium oxide interfaces

Autors: 
Slepchenkov Mikhail Mikhailovich, Saratov State University
Murashko Denis T., National Research University «Moscow Institute of Electronic Technology»
Kuksin Artem V., National Research University «Moscow Institute of Electronic Technology»
Ryazanov Roman M., Scientific-Manufacturing Complex “Technological Centre”
Lebedev Egor A., National Research University «Moscow Institute of Electronic Technology»
Shaman Yury P., Scientific-Manufacturing Complex “Technological Centre”
Kitsyuk Evgeny Pavlovich, Scientific-Manufacturing Complex “Technological Centre”
Gerasimenko Alexander Yur'evich, National Research University «Moscow Institute of Electronic Technology»
Glukhova Olga E., Saratov State University
Abstract: 

Background and Objectives: Currently, carbon nanostructure/metal oxide interfaces are becoming one of the key components of nanoelectronic devices, including tunnel field-effect transistors. Among carbon nanomaterials, special attention is paid to graphene, the increase in structural stability and control of electrical conductivity of which is an urgent scientific task. One of the solutions to this problem, which has been experimentallytested, is a combination of graphene with carbon nanotubes(CNT) in a hybrid nanostructure. Inthis work, we experimentally obtained for the first time 2D/0D interface samples in the form of a hybrid film of reduced graphene oxide (RGO) and single-walled carbon nanotubes (SWCNTs) with deposited aluminum oxide (Al2O3) nanoparticles. Materials and Methods: Samples with an Al2O3 nanoparticle layer thickness of 5 nm and 20 nm were synthesized. Due to pulsed laser radiation with an energy density of 0.24 J/cm2 (laser processing power of 70 mW), the effect of binding Al2O3 nanoparticles to the surface of RGO/SWCNT nanostructures, as well as the effect of forming SWCNT nanostructures oriented at an angle to the silicon substrate, was achieved. Results: Electrical conductivity measurements were performed for the synthesized samples at temperatures of –50, –10, +20, +60, +140, +200°C. It has been found that with increasing temperature, the electrical conductivity of the sample with a layer thickness of Al2O3 nanoparticles of 5 nm increases by 2.5 times, and the sample with a thickness of 20 nm – by 4.2 times. At the same time, for the sample with a layer thickness of Al2O3 nanoparticles of 20 nm, higher electrical conductivity values are characteristic at all temperatures. Conclusion: Based on the obtained results, the synthesized samples of the RGO/SWCNT/Al2O3 interface can be recommended for use in nanoelectronic devices.

Key words: 
graphene–nanotube hybrid films
aluminum oxide
electrical conductivity
laser action
Acknowledgments: 
The research was supported by the Russian Science Foundation (project No. 24-79-10316, https://rscf.ru/project/24-79-10316/).
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Received: 
11.04.2025
Accepted: 
15.05.2025
Published: 
29.08.2025
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