Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Near‐Infrared‐Activated Thermochromic Perovskite Smart Windows
Perovskite‐based thermochromic smart windows that can change color have attracted much interest. However, the high transition temperature (>45 °C in air) hinders their practical application. Herein, a near‐infrared (NIR) activated thermochromic perovskite window that enables reversible transition cycles at room temperature is proposed. Under natural sunlight (>700 W m−2), it efficiently harvests 78% NIR light to trigger the thermochromism of perovskites, blocking the heat gain from both the visible and NIR light. Meanwhile, it also exhibits a low mid‐infrared emissivity of <0.3, suppressing thermal radiation to the indoor environment. A field test demonstrates that this smart window can reduce the indoor temperature by 8 °C compared to a normal glass window at noon. The near‐room‐temperature color change, multispectral thermal management, outstanding energy‐saving ability, and climate adaptability, and solution‐based process of this window make it unique and promising for real applications.
Near‐Infrared‐Activated Thermochromic Perovskite Smart Windows
Perovskite‐based thermochromic smart windows that can change color have attracted much interest. However, the high transition temperature (>45 °C in air) hinders their practical application. Herein, a near‐infrared (NIR) activated thermochromic perovskite window that enables reversible transition cycles at room temperature is proposed. Under natural sunlight (>700 W m−2), it efficiently harvests 78% NIR light to trigger the thermochromism of perovskites, blocking the heat gain from both the visible and NIR light. Meanwhile, it also exhibits a low mid‐infrared emissivity of <0.3, suppressing thermal radiation to the indoor environment. A field test demonstrates that this smart window can reduce the indoor temperature by 8 °C compared to a normal glass window at noon. The near‐room‐temperature color change, multispectral thermal management, outstanding energy‐saving ability, and climate adaptability, and solution‐based process of this window make it unique and promising for real applications.
Near‐Infrared‐Activated Thermochromic Perovskite Smart Windows
Liu, Sai (Autor:in) / Li, Yang (Autor:in) / Wang, Ying (Autor:in) / Yu, Kin Man (Autor:in) / Huang, Baoling (Autor:in) / Tso, Chi Yan (Autor:in)
Advanced Science ; 9
01.05.2022
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Near‐Infrared‐Activated Thermochromic Perovskite Smart Windows (Adv. Sci. 14/2022)
| Wiley | 2022
Near-Infrared Thermochromic Diazapentalene Dyes
| British Library Online Contents | 2012