Thermochromic Infrared Metamaterials.

Liu, Xinyu; Padilla, Willie J · Adv Mater · 2016

basic_science · Level V

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Abstract

An infrared artificial thermochromic material composed of a metamaterial emitter and a bimaterial micro-electro-mechanical system is investigated. A differential emissivity of over 30% is achieved between 623 K and room temperature. The passive metamaterial device demonstrates the ability to independently control the peak wavelength and temperature dependence of the emissivity, and achieves thermal emission following a super Stefan-Boltzmann power curve.