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    Smart windows can selectively regulate excess solar radiation to reduce heating and cooling energy consumption in the built environment. However, the inevitable dissipation of ultraviolet and near-infrared into waste heat results in inefficient solar utilization. Herein, a dual-band selective solar harvesting (SSH) window is developed to realize full-spectrum utilization. A transparent photovoltaic, converting ultraviolet into electricity, and a transparent solar absorber, converting near-infrared into thermal energy, are integrated and coupled with a ventilation system to extract heat for indoor use. Compared with common transparent photovoltaics, the SSH window increases solar harvesting efficiency up to threefold while maintaining a considerable visible transmittance. Simulations suggest that the SSH window, besides generating electricity, delivers energy savings by over 30% higher than common smart windows. This is the first integration of transparent photovoltaic and transparent solar absorber into a window, which may open up a new avenue for the development of energy-efficient buildings. © 2022 The Authors. Advanced Science published by Wiley-VCH GmbH.


    Weihong Li, Chongjia Lin, Gan Huang, Jun Hur, Baoling Huang, Shuhuai Yao. Selective Solar Harvesting Windows for Full-Spectrum Utilization. Advanced science (Weinheim, Baden-Wurttemberg, Germany). 2022 Jul;9(21):e2201738

    PMID: 35666069

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