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High Performance Durable Vanadium Dioxide Spectral Selective Modulation Smart Windows
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DOI：10.1002/adfm.76925.png)
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Abstract
En 中文
Buildings consume 40% of global energy consumption, and windows are the least energy-efficient component. Vanadium dioxide nanoparticles (VO2 NPs)-based spectral selective modulation smart windows (SSMSWs) represent a recent pivotal technology advancement for achieving building energy conservation and emission reduction. However, their practical application is hindered by the intrinsic instability of VO2 NPs and poor spectral modulation performance, including low luminous transmittance (Tlum), limited solar modulation efficiency (ΔTsol), and modest mid-infrared emission modulation (Δε). Herein, we propose systematic microstructure engineering to address these challenges. The enhanced crystallinity and core–shell protection improve the durability of VO2 NPs-based SSMSWs by an order of magnitude while simultaneously boosting their spectral selective modulation. The resulting SSMSWs exhibit comprehensively enhanced Tlum of 28.5%, ΔTsol of 10.5%, Δε of 0.50, surpassing the state-of-the-art. Building energy simulations across five major climate zones demonstrate average annual energy savings of 8.2% and 2.6% compared to conventional and commercial low-E glass, respectively.
Keywords:
durability
spectral selective modulation
smart windows
surface engineering
vanadium dioxide nanoparticles
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