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The aim of this paper is to report the results of field emission experiments on undoped, flat diamond-like carbon (DLC) thin films deposited at various self-bias voltages using radio frequency plasma chemical vapor deposition (RF PCVD) technique. It has been observed that the emission properties improve when the absolute value of self-bias voltage becomes higher, e.g., the turn-on field value decreases. The correlation between electron field emission and sp2 content in these films showed improvement of electron emission properties of DLC films for higher amount of sp2 phase.
Rocznik
Tom
Strony
39--43
Opis fizyczny
Bibliogr. 10 poz., rys., tab.
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autor
autor
autor
autor
- Microwave Laboratory, Université catholique de Louvain (UCL), Place du Levant, 3 B-1348 Louvain-la-Neuve, Belgium, dimitri.lederer@tyndall.ie
Bibliografia
- [1] J. B. Cui, J. Ristein, and L. Ley, “Low-threshold electron emission from diamond”, Phys. Rev., vol. 60, pp. 16135–16142, 2000.
- [2] P. K. Baumann and R. J. Nemanich, “Negative electron affinity effects on H plasma exposed diamond (100) surfaces”, Diam. Rel. Mater., vol. 4, pp. 802–805, 1995.
- [3] B. B. Pate, “The diamond surface: atomic and electronic structure”, Surf. Sci., vol. 165, pp. 83–142, 1990.
- [4] H. Kawarada, “Hydrogen-terminated diamond surfaces and interfaces”, Surf. Sci. Rep., vol. 26, pp. 205–259, 1996.
- [5] R. H. Fowler and L. Nordheim, “Electron emission in intense electric fields”, Proc. Roy. Soc. Lon. Ser. A., vol. 119, no. 781, pp. 173–181, 1928.
- [6] J. Y. Luo, K. S. Liu, J. S. Lee, I. N. Lin, and H. F. Cheng, “The influence of film-to-substrate characteristics on the electron field emission behavior of the diamond films”, Diam. Rel. Mater., vol. 7, pp. 704–710, 1998.
- [7] J. B. Cui, M. Stammler, J. Ristein, and L. Ley, “Role of hydrogen on field emission from chemical vapor deposited diamond and nanocrystalline diamond powder” J. Appl. Phys., vol. 88, pp. 3667–3674, 2000.
- [8] E. Staryga and G. W. Bąk, “Relation between physical structure and electrical properties of diamond-like carbon thin films”, Diam. Rel. Mater., vol. 14, pp. 23–34, 2005.
- [9] C. E. Nebel, “Electronic properties of CVD diamond”, Semicond. Sci. Technol., vol. 18, pp. S1–S11, 2003.
- [10] A. V. Karabutov, V. D. Frolov, and V. I. Konov, “Diamond/sp2-bonded carbon structures: quantum well field electron emission?”, Diam. Relat. Mater., vol. 10, pp. 840–846, 2001.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BAT8-0009-0064