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Journal of Nanomaterials
Volume 2013 (2013), Article ID 792875, 7 pages
http://dx.doi.org/10.1155/2013/792875
Research Article

Thermoelectric Properties of Carbon Nanotube and Nanofiber Based Ethylene-Octene Copolymer Composites for Thermoelectric Devices

1Polymer Centre, Faculty of Technology, T. Bata University, T.G.M. 275, 762 72 Zlin, Czech Republic
2Centre of Polymer Systems, University Institute, T. Bata University, Nad Ovcirnou 3685, 760 01 Zlin, Czech Republic
3Institute of Hydrodynamics, Academy of Sciences, Pod Patankou 5, 166 12 Prague 6, Czech Republic
4Deptartment of Polymer Engineering, Faculty of Technology, T. Bata University in Zlin, T.G.M. 275, 762 72 Zlin, Czech Republic

Received 12 June 2013; Revised 30 August 2013; Accepted 31 August 2013

Academic Editor: Jung-Kun Lee

Copyright © 2013 P. Slobodian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Polymer composites have been created from multiwalled carbon nanotubes or carbon nanofibers and ethylene-octene copolymer. The composites have thermoelectric properties and exhibit thermoelectric effect, that is, the conversion of temperature differences into electricity. The thermoelectric efficiency of created composites with nanotube or nanofiber concentration of 30 wt% evaluated by a thermoelectric power at room temperature is 13.3 μV/K and 14.2 μV/K, respectively. The flexible thermoelectric device (thermopile) was constructed with three different composite legs to produce electric current and the output voltage was measured in the range of temperature difference from −15 to 25°C.