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arXiv · 1902.07603

Photonic thermal conduction by infrared plasmonic resonators in semiconductor nanowires

Eric J. Tervo·Michael E. Gustafson·Zhuomin M. Zhang·Baratunde A. Cola·Michael A. Filler
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Abstract

Photons typically do not contribute to thermal transport within a solid due to their low energy density and tendency to be quickly absorbed. We propose a practical material system - infrared plasmonic resonators embedded in a semiconductor nanowire - that leverages near-field electromagnetic coupling to achieve photonic thermal transport comparable to the electronic and phononic contributions. We analytically show photonic thermal conductivities up to about 1 W m-1 K-1 for 10 nm diameter Si and InAs nanowires containing repeated resonators at 500 K. The nanowire system outperforms plasmonic particles in isotropic environments and presents a pathway for photonic thermal transport to exceed that of phonons and electrons.

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Eric J. Tervo, Michael E. Gustafson, Zhuomin M. Zhang, Baratunde A. Cola, Michael A. Filler. 2019-02-20. Photonic thermal conduction by infrared plasmonic resonators in semiconductor nanowires. https://doi.org/10.1063/1.5093309

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