Radiative heat transfer between Cross-Stacked Carbon Nanotube Networks
Igor S. Nefedov,1 J. Miguel Rubi, 2
1 Saratov State University, Saratov, Russia
2 Statistical and Interdisciplinary Physics Section, Departament de Fisica de la Matèria Condensada, Universitat de Barcelona, Marti i Franquès 1, 08028, Barcelona, Spain
Abstract
We have studied the radiative heat transfer between two closely spaced Cross-Stacked Carbon Nanotube Networks, or woodpile structures composed of single-wall carbon nanotudes. The radiative heat exchange is due to the difference between the Poynting vectors generated by the fluctuating currents when the CNTs are at different temperatures. The radiated and absorbed Poynting vectors are expressed in terms of the correlations of the electromagnetic fields obtained from the Maxwell equations and the fluctuation-dissipation theorem for the current density. We show that the radiative heat
transfer depends not only on the distance between Cross-Stacked Carbon Nanotube Networks, but also on their chiralities and thus on their semiconducting or metallic nature.
Speaker
Igor Nefedov
Saratov State University
Russia
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