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Thermochromic Infrared Metamaterials
Author(s) -
Liu Xinyu,
Padilla Willie J.
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201504525
Subject(s) - emissivity , metamaterial , materials science , thermochromism , infrared , common emitter , optoelectronics , wavelength , low emissivity , optics , condensed matter physics , physics
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.