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Intercalated graphite is a promising carbon material to be applied as an autoemission media because it is possible to synthesize carbon nanostructure in them by the means of unsophisticated experiments. However, there is no sufficient data in the literature on the effect of ionic action on physical properties of intercalated graphite. In this work, the surface morphology and structure of composite films based on intercalated graphite obtained by treating graphite powder and Fe, Ni, Y2O3, Cr doping materials in an oxidizing solution of nitric and sulfuric acids are studied. The changes in films that occur by the action of helium ion bombardment are shown. It has been established that the resulting films contain two modifications of graphite with different interplanar distances - hexagonal P 63mc (0.247 nm) and metastable rhombohedral R-3m (0.246 nm). It was demonstrated that XPS spectra at the C 1s level correspond to crystalline carbon with varying degrees of chemical structure hydrogenation. It was found that the films are characterized by the absence of an ordered surface relief structure and consist of randomly oriented aggregates of particles. The formation of graphite flakes having various shapes and a thickness of approximately several tens of nanometers was discovered. A slight change in the surface morphology of the samples that were activated by helium plasma was noted. It was defined that graphite-like sp2 clusters are more resistant to ion irradiation than sp3 clusters. It was demonstrated that during film bombardment with helium ions the sp3 clusters are rearranged into more stable C-O, C-O-C and C=O chemical structures. The average size of sp2 clusters is ~ 5 nm.

Key words: intercalated graphite, stainless steel substrates, amorphous carbon, iron carbide, Raman scattering, X-ray photoelectron spectroscopy
Published in: ELECTRONICS MATERIALS
Bibliography link: Khamdokhov Z. M., Margushev Z. Ch., Kalazhokov Z. Kh., Kalazhokov Kh. Kh., Kushkhov Kh. B., Teshev R. Sh. Features of the effect of a helium ion beam on an intercalated graphite film. Proc. Univ. Electronics, 2024, vol. 29, no. 4, pp. 420–431. https://doi.org/10.24151/1561-5405-2024-29-4-420-431

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 State University named after H. M. Berbekov (Russia, 360004, Kabardino-Balkarian Republic, Nalchik, Chernyshevsky st., 173); Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences (Russia, 360000, Kabardino-Balkarian

Khamidbi Kh. Kalazhokov
Kabardino-Balkarian State University named after H. M. Berbekov (Russia, 360004, Kabardino-Balkarian Republic, Nalchik, Chernyshevsky st., 173)

Khasbi B. Kushchov
Kabardino-Balkarian State University named after H. M. Berbekov (Russia, 360004, Kabardino-Balkarian Republic, Nalchik, Chernyshevsky st., 173)

Ruslan Sh. Teshev
Kabardino-Balkarian State University named after H. M. Berbekov (Russia, 360004, Kabardino-Balkarian Republic, Nalchik, Chernyshevsky st., 173)

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UDK: 681.51.011
Publication type: Scientific article
DOI: 10.24151/1561-5405-2024-29-4-420-431
RISC id: CYHFZH

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