| Title |
Changes in electrical properties of graphite coatings annealed in air and nitrogen environments |
| Authors |
Jamasali, Yusof-den ; Majeed, Abdul Mannan ; Stanionytė, Sandra ; Šablinskas, Valdas ; Kreiza, Gediminas ; Mekys, Algirdas ; Ščajev, Patrik |
| DOI |
10.3390/app152111727 |
| Full Text |
|
| Is Part of |
Applied sciences.. Basel : MDPI AG. 2025, vol. 15, iss. 21, art. no. 11727, p. 1-14.. eISSN 2076-3417 |
| Keywords [eng] |
conductive coatings ; graphite ; Raman spectroscopy |
| Abstract [eng] |
Graphite has fascinated researchers since its discovery because of its unique features and potential applications. Graphite can be applied as a coating onto other materials to tailor their functionality for specific device applications. In the present study, graphite spray was deposited onto glass substrates and then annealed in air and in a N2 gas environment at different temperatures (50 °C to 500 °C). SEM, Raman, and XRD characterization techniques were employed. SEM showed the deposited graphite material has flake-like structures. Raman spectra reveal three prominent spectral bands at ~1350.91 cm−1, ~1579.19 cm−1 and ~2691.47 cm−1, which signify the G, D, and 2D vibrational modes of graphite, respectively. XRD results show three signature peaks of hexagonal graphene sheets at 2θ ≈ 26.4, 54.3, and 77.7 deg corresponding to (002), (004), and (110), respectively. Electrical conductivity of the films was investigated with the use of two- and four-probe methods. In a N2 gas environment, the annealing temperature did not have much effect on crystallinity, while significant changes in the conductivity of the graphite coatings were observed using different annealing temperatures. |
| Published |
Basel : MDPI AG |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
