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Journal of Nanophotonics

Transport and electromagnetic properties of ultrathin pyrolytic carbon films
Author(s): Polina P. Kuzhir; Vitaly Ksenevich; Alesia G. Paddubskaya; Sergey A. Maksimenko; Tommi Kaplas; Yuri Svirko
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Paper 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.

Paper Details

J. Nanophoton. 7(1) 073595 doi: 10.1117/1.JNP.7.073595
Published in: Journal of Nanophotonics Volume 7, Issue 1, January 2013
Show Author Affiliations
Polina P. Kuzhir, Belarusian State Univ. (Belarus)
Vitaly Ksenevich, Belarusian State Univ. (Belarus)
Alesia G. Paddubskaya, Belarusian State Univ. (Belarus)
Sergey A. Maksimenko, Belarusian State Univ. (Belarus)
Tommi Kaplas, Univ. of Eastern Finland (Finland)
Yuri Svirko, Univ. of Eastern Finland (Finland)

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