Special Section on Nanostructured Thin Films: Fundamentals and Applications

Transport and electromagnetic properties of ultrathin pyrolytic carbon films

[+] Author Affiliations
Polina P. Kuzhir

Belarusian State University, Research Institute for Nuclear Problem, 11 Bobruiskaya Street, 220030 Minsk, Belarus

Vitaly K. Ksenevich

Belarusian State University, Department of Physics, Nezavisimosti Avenue, 4, 220030, Minsk, Belarus

Alesia G. Paddubskaya

Belarusian State University, Research Institute for Nuclear Problem, 11 Bobruiskaya Street, 220030 Minsk, Belarus

Sergey A. Maksimenko

Belarusian State University, Research Institute for Nuclear Problem, 11 Bobruiskaya Street, 220030 Minsk, Belarus

Tommi Kaplas

University of Eastern Finland, Department of Physics and Mathematics, P. O. Box 111, FI-80101 Joensuu, Finland

Yuri Svirko

University of Eastern Finland, Department of Physics and Mathematics, P. O. Box 111, FI-80101 Joensuu, Finland

J. Nanophoton. 7(1), 073595 (Mar 19, 2013). doi:10.1117/1.JNP.7.073595
History: Received December 12, 2012; Revised March 4, 2013; Accepted March 6, 2013
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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 CH4H2 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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© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Polina P. Kuzhir ; Vitaly K. Ksenevich ; Alesia G. Paddubskaya ; Sergey A. Maksimenko ; Tommi Kaplas, et al.
"Transport and electromagnetic properties of ultrathin pyrolytic carbon films", J. Nanophoton. 7(1), 073595 (Mar 19, 2013). ; http://dx.doi.org/10.1117/1.JNP.7.073595


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