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Large Scale Random Metamaterial for Effective Day-time Radiative Cooling

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Abstract

We demonstrate a large-scale random metamaterial for day-time radiative cooling. The metamaterial, fabricated on a roll-to-roll extruder, has demonstrated 0.93 average emissivity over the atmospheric window, achieving a 93 W/m2 cooling power under direct sunshine.

© 2017 Optical Society of America

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