Colloidal graphites are widely used as components in the production of graphite mixtures and process lubricants in industry, as well as in electronics for the manufacture of field emission media for cold cathodes. It is known that the physical and chemical properties of such films are largely determined by the ratio of carbon concentrations in the sp2 and sp3 valence states in it. Therefore, methods for modifying graphite films that allow controlling the specified ratio of valence states are quite relevant. In this work, the effect of irradiation with N+, Ar+, He+ ions on the content of carbon atoms with sp2 and sp3 hybridization in carbon films obtained by aerosol spraying of a colloidal solution of the Graphite 33 brand onto glass substrates with a submicron layer of titanium nitride on the surface is studied. The films were irradiated with N+, Ar+, He+ ions with an energy of 7 keV and a current density of ~ 0.3 mA/cm2 at room temperature. An x-ray photoelectron spectroscopy study of the surface of these samples showed that bombardment with nitrogen ions causes disordering of sp2 graphite clusters and their subsequent transformation into sp3 structures. It has been established that the number of sp2 atoms decreases, while the content of carbon atoms with sp3 hybridization increases significantly.
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Key words:
colloidal graphite film, carbon, xray photoelectron spectroscopy
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Published in:
ELECTRONICS MATERIALS
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Bibliography link:
For citation: Khamdokhov Z. M., Margushev Z. Ch., Kalazhokov Z. Kh., Kalazhokov Kh. Kh. The effect of irradiation with N+, Ar+, He+ ions on the structure of colloidal graphite. Izv. vuzov. Elektronika = Proc. Univ. Electronics. 2025;30(3):287–292. (In Russ.). https://doi.org/10.24151/1561-5405-2025-30-3-287-292.
Zalim M. Khamdokhov
Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences (Russia, 360000, Kabardino-Balkarian Republic, Nalchik, I. Armand st., 37a)
Zaur Ch. Margushev
Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences (Russia, 360000, Kabardino-Balkarian Republic, Nalchik, I. Armand st., 37a)
Zamir Kh. Kalazhokov
Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences (Russia, 360000, Kabardino-Balkarian Republic, Nalchik, I. Armand st., 37a); Kabardino-Balkarian State University named after H. M. Berbekov (Russia, 360004, Kabardino-Balkarian Repu
Khamidbi Kh. Kalazhokov
Kabardino-Balkarian State University named after H. M. Berbekov (Russia, 360004, Kabardino-Balkarian Republic, Nalchik, Chernyshevsky st., 173)
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