Transport and electromagnetic properties of ultrathin pyrolytic carbon films

Polina P. Kuzhir; Vitaly Ksenevich; Alesia G. Paddubskaya; Sergey A. Maksimenko; Tommi Kaplas; Yuri Svirko

doi:10.1117/1.JNP.7.073595

19 March 2013 Transport and electromagnetic properties of ultrathin pyrolytic carbon films

Polina P. Kuzhir, Vitaly Ksenevich, Alesia G. Paddubskaya, Sergey A. Maksimenko, Tommi Kaplas, Yuri Svirko

Author Affiliations +

Journal of Nanophotonics, Vol. 7, Issue 1, 073595 (March 2013). https://doi.org/10.1117/1.JNP.7.073595

Abstract

We experimentally investigated the electrical and electromagnetic (EM) properties of pyrolytic carbon (PyC) ultrathin films synthesized on a quartz substrate by chemical vapor deposition at 1100°C using low pressure CH4∶H2 gas mixture as carbon source. PyC films consist of randomly oriented and intertwined graphene ribbons, which have a typical size of a few nanometers. We discovered that the manufactured PyC films of 35-nm thickness provided remarkably high attenuation caused by absorption of 37% to 24% of incident microwave power. The temperature dependence of PyC’s direct-current (DC) conductivity represents typical behavior for disordered systems. Being semitransparent in visible and infrared spectral range and highly conductive at room temperature, PyC films emerge as a promising material for manufacturing ultrathin microwave (e.g., Ka band) coatings to be used in aerospace applications.

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Polina P. Kuzhir, Vitaly Ksenevich, Alesia G. Paddubskaya, Sergey A. Maksimenko, Tommi Kaplas, and Yuri Svirko "Transport and electromagnetic properties of ultrathin pyrolytic carbon films," Journal of Nanophotonics 7(1), 073595 (19 March 2013). https://doi.org/10.1117/1.JNP.7.073595

Published: 19 March 2013

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