Nano Letters· 2013Q1
Ultrabroadband Photonic Structures To Achieve High-Performance Daytime Radiative Cooling
- 1,169citations
- Q1SCImago
- 2013year
Short summary
A novel metal-dielectric photonic structure achieves daytime radiative cooling exceeding 100 W/m(2) by reflecting solar light and strongly emitting in the mid-IR atmospheric window.
AI-generated from the title and abstract; the full text is not read.
Key points
- First demonstration of a photonic structure for daytime radiative cooling.
- Structure reflects solar light broadly and emits strongly in the mid-IR atmospheric window.
- Achieves net cooling power > 100 W/m(2) at ambient temperature.
- Cooling is effective despite convective heat exchange and non-ideal atmospheric conditions.
AI-generated from the title and abstract; the full text is not read.
Abstract
If properly designed, terrestrial structures can passively cool themselves through radiative emission of heat to outer space. For the first time, we present a metal-dielectric photonic structure capable of radiative cooling in daytime outdoor conditions. The structure behaves as a broadband mirror for solar light, while simultaneously emitting strongly in the mid-IR within the atmospheric transparency window, achieving a net cooling power in excess of 100 W/m(2) at ambient temperature. This cooling persists in the presence of significant convective/conductive heat exchange and nonideal atmospheric conditions.
The authors' abstract, as published at the source. Nano Letters, 2013 · DOI ↗
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Field: Civil and Structural Engineering
Civil and Structural EngineeringEngineering