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Photoluminescent-assisted hierarchical metafabric sunshade for high-efficient passive cooling
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DOI:10.1016/j.xinn.2026.101503.png)
Abstract
En 中文
High-rise buildings and electric vehicles in high solar irradiation regions consume amounts of energy for climate control, posing a significant challenge to global sustainability. The primary obstacle lies in integrating zero-energy, efficient cooling solutions without compromising comfort. As urbanization intensifies, innovative solutions must balance environmental impact with functionality. We propose a holistic strategy featuring photoluminescent-assisted hierarchical metafabric sunshade for post-glass spectral regulation. This material leverages to achieve a 95.8% emissivity in the mid-infrared (MIR) band and 94.3% reflectivity in the solar band. These particles efficiently convert absorbed ultraviolet (UV) light into visible light with an absolute quantum yield of 16.4%, significantly boosting cooling performance beyond traditional passive radiative materials. In real-world testing, the metafabric sunshade achieved a temperature reduction of 17.8°C and 14.4°C compared to the vehicles with blank and commercial sunshade, respectively. These results suggest that photoluminescent-enhanced metafabrics represent a sustainable, energy-saving pathway for cooling high-rise infrastructure and transportation, offering a scalable solution to mitigate urban heat islands and advance global sustainability goals.
Keywords:
passive cooling
hierarchical structure
metafabric
Journal
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Papers:
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