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Photon Entropy Control and Near-Field Radiative Coupling Improve Efficiency of Thermoradiative Cells

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Abstract

Efficiency of thermoradiative cells can be increased by spectrally selecting high-entropy long-wavelength infrared photons for radiative energy exchange. Furthermore, near-field coupling to phonon polaritons in the heat sink increases both conversion efficiency and power density.

© 2016 Optical Society of America

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