title: Simple far-field radiative thermal rectifier using Fabry-Perot cavities based infrared selective emitters.
abstract: We present a thermal rectification device concept based on far-field radiative exchange between two selective emitters. Rectification is achieved due to a large contrast between the two selective emitters' thermo-optical properties. A simple device constituted by two multilayer samples made of metallic (Au) and semiconductor (Si and HDSi) thin films is proposed. This device shows a rectification ratio increasing with temperature up to 19% for a temperature difference of ΔT=370  K. Further optimization would allow larger rectification values. The presented results might be useful for energy conversion devices, engineering of smart radiative coolers/insulators, and development of thermal logical circuits.
authors.forename: E
authors.initials: E
authors.lastname: Nefzaoui
authors.forename: J
authors.initials: J
authors.lastname: Drevillon
authors.forename: Y
authors.initials: Y
authors.lastname: Ezzahri
authors.forename: K
authors.initials: K
authors.lastname: Joulain