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  • Cephalopod-inspired versatile design based on plasmonic VO2 nanoparticle for energy-efficient mechano-thermochromic windows

    Author(s)
    Ke, Y
    Zhang, Q
    Wang, T
    Wang, S
    Li, N
    Lin, G
    Liu, X
    Dai, Z
    Yan, J
    Yin, J
    Magdassi, S
    Zhao, D
    Long, Y
    Griffith University Author(s)
    Zhao, Dongyuan
    Year published
    2020
    Metadata
    Show full item record
    Abstract
    Privacy and energy-saving are key functionalities for next-generation smart windows, while to achieve them independently on a window is challenging. Inspired by the cephalopod skin, we have developed a versatile thermo- and mechano-chromic design to overcome such challenge and reveal the mechanism via both experiments and simulations. The design is facile with good scalability, consisted of well-dispersed vanadium dioxide (VO2) nanoparticles (NPs) with temperature-dependent localized surface plasmon resonance (LSPR) in transparent elastomers with dynamic micro wrinkles. While maintaining a fixed solar energy modulation of ...
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    Privacy and energy-saving are key functionalities for next-generation smart windows, while to achieve them independently on a window is challenging. Inspired by the cephalopod skin, we have developed a versatile thermo- and mechano-chromic design to overcome such challenge and reveal the mechanism via both experiments and simulations. The design is facile with good scalability, consisted of well-dispersed vanadium dioxide (VO2) nanoparticles (NPs) with temperature-dependent localized surface plasmon resonance (LSPR) in transparent elastomers with dynamic micro wrinkles. While maintaining a fixed solar energy modulation of (ΔTsol), the design can dynamically control visible transmittance (Tvib) from 60% to 17%, adding a new dimension to VO2-based smart windows. We prove that the optical modulation relies on the microtexture-induced broadband diffraction and the plasmon-enhanced near-infrared absorbance of VO2 NPs. We further present a series of modified designs towards additional functionalities. This work opens an avenue for independent dual-mode windows and it may inspire development from fundamental material, optic, and mechanical science to energy-related applications.
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    Journal Title
    Nano Energy
    Volume
    73
    DOI
    https://doi.org/10.1016/j.nanoen.2020.104785
    Subject
    Macromolecular and materials chemistry
    Materials engineering
    Nanotechnology
    Publication URI
    http://hdl.handle.net/10072/398531
    Collection
    • Journal articles

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