The influence of silicon content and synthesis atmosphere on the electrical properties and chemical composition of Ru–Si–O nanocomposites
Artykuł w czasopiśmie
MNiSW
140
Lista 2024
| Status: | |
| Autorzy: | Wilczyńska Aleksandra, Wójcicka Aleksandra, Taube Andrzej , Łakomski Mateusz, Kołtunowicz Tomasz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 11 |
| Wolumen/Tom: | 31 |
| Numer artykułu: | 1802 |
| Strony: | 1 - 19 |
| Impact Factor: | 4,6 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This work was supported by the Scientific Discipline Council for Automatic Control, Electronics, Electrical Engineering and Space Technologies at the Lublin University of Technology (grants FD-20/EE-2/327, FD-20/EE-2/703 and FD-20/EE-2/999). |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 24 maja 2026 |
| Abstrakty: | angielski |
| This paper presents the results of the preparation and electrical characterization of Ru–Si–O thin-film nanocomposites deposited by magnetron sputtering (pDC) with varying oxygen content ranging from 0% to 50%. Measurements were conducted over a wide frequency range of 50 Hz–5 MHz and temperatures of 20–373 K. Conductivity analysis revealed that DC conduction occurs at low frequencies (≤103 Hz), while an increase in conductivity associated with electron tunneling mechanisms is observed at higher frequencies. The de- termined charge transport activation energies range from 3 × 10−4 eV for the oxygen-free sample to 6 × 10−2 eV for the high-oxygen samples, indicating a significant effect of com- position on the conduction mechanisms. In samples containing 30% and 50% oxygen, two characteristic frequency ranges for the activation of transport processes were observed (e.g., ~102–103 Hz and 104–106 Hz), suggesting the coexistence of multiple tunneling mechanisms. Phase angle analysis revealed a transition from values near –90◦ at 151 K to values near 0◦ at 333 K, characteristic of parallel RC systems. The minimum dielectric loss tangent occurs in the range of 103–105 Hz, corresponding to Maxwell–Wagner relaxation. The dispersion coefficient α reaches maximums in two frequency ranges, decreasing with increasing oxy- gen content. EDS analysis showed a decrease in Ru content from ~24.9 at.% (0% O2) to ~0.7 at.% (50% O2) and an increase in oxygen content to ~78 at.% at 10% O2. The results confirm the transition from metallic conduction to tunneling and hopping mechanisms with increasing oxidation state of the structure. |
