- Tytuł:
- Ion Beam Induced Darkening in Tetrahedral Amorphous Carbon Thin Films
- Autorzy:
-
Sandulov, M.
Berova, M.
Tsvetkova, T.
Zuk, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1402243.pdf
- Data publikacji:
- 2015-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
81.05.U-
68.55.Ln
42.70.Ln - Opis:
- The samples of thin film (d ≈ 40 nm) tetrahedral amorphous carbon (ta-C), deposited by the filtered cathodic vacuum arc have been implanted with N⁺ at a fluence of 3×10¹⁴ cm¯² and ion energy E=20 keV. The induced structural modification of the implanted material results in a considerable change of its optical properties, best manifested by a significant shift of the optical absorption edge to lower photon energies as obtained from optical transmission measurements. This shift is accompanied by a considerable increase of the absorption coefficient (photodarkening effect) in the measured wavelength range (350÷2500 nm). These effects could be attributed to both the additional defect introduction and the increased graphitization, as confirmed by the X-ray photoelectron spectroscopy measurements. The optical contrast thus obtained (between implanted and unimplanted film materials) could be made use of in the area of high-density optical data storage using the focused ion beams.
- Źródło:
-
Acta Physica Polonica A; 2015, 128, 5; 953-956
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł