Journal ArticleDOI
Two-Dimensional SiO2/VO2 Photonic Crystals with Statically Visible and Dynamically Infrared Modulated for Smart Window Deployment
Yujie Ke,Igal Balin,Ning Wang,Qi Lu,Alfred Iing Yoong Tok,Timothy J. White,Shlomo Magdassi,Ibrahim Abdulhalim,Yi Long +8 more
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TLDR
This work presents a novel way to manipulate VO2 photonic structures to modulate light transmission as a function of wavelength at different temperatures.Abstract:
Two-dimensional (2D) photonic structures, widely used for generating photonic band gaps (PBG) in a variety of materials, are for the first time integrated with the temperature-dependent phase change of vanadium dioxide (VO2). VO2 possesses thermochromic properties, whose potential remains unrealized due to an undesirable yellow-brown color. Here, a SiO2/VO2 core/shell 2D photonic crystal is demonstrated to exhibit static visible light tunability and dynamic near-infrared (NIR) modulation. Three-dimensional (3D) finite difference time domain (FDTD) simulations predict that the transmittance can be tuned across the visible spectrum, while maintaining good solar regulation efficiency (ΔTsol = 11.0%) and high solar transmittance (Tlum = 49.6%). Experiments show that the color changes of VO2 films are accompanied by NIR modulation. This work presents a novel way to manipulate VO2 photonic structures to modulate light transmission as a function of wavelength at different temperatures.read more
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Journal ArticleDOI
Thermochromic VO2 for Energy-Efficient Smart Windows
Yuanyuan Cui,Yujie Ke,Chang Liu,Zhang Chen,Ning Wang,Ning Wang,Liangmiao Zhang,Yang Zhou,Shancheng Wang,Yanfeng Gao,Yi Long +10 more
TL;DR: A comprehensive overview of the application of VO2 to smart windows with particular emphasis on recent progress from the electronic, atomic, nano, and micron perspectives is provided in this article.
Journal ArticleDOI
Smart Windows: Electro-, Thermo-, Mechano-, Photochromics, and Beyond
TL;DR: In this article, a review of recent progress in smart windows of each category is overviewed with particular focus on functional materials, device design, and performance enhancement, followed by a discussion of emerging technologies such as dual stimuli triggered smart window and integrated devices toward multifunctionality.
Journal ArticleDOI
Emerging thermal-responsive materials and integrated techniques targeting the energy-efficient smart window application
TL;DR: In this article, a review of emerging thermoresponsive materials for smart window applications, including hydrogels, ionic liquids, perovskites, metamaterials, and liquid crystals, is presented.
Journal ArticleDOI
Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows
TL;DR: The first approach-nano-thermochromism-which is to integrate VO2 nanoparticles in a transparent matrix, outperforms the rest; while the thermochromic performance is determined by particle size, stoichiometry, and crystallinity.
Journal ArticleDOI
Vanadium Dioxide: The Multistimuli Responsive Material and Its Applications
TL;DR: This review systematically summarizes VO2 -based emerging technologies by classifying different stimuli (inputs) with their corresponding responses (outputs) including consideration of the mechanisms at play.
References
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Properties, requirements and possibilities of smart windows for dynamic daylight and solar energy control in buildings: A state-of-the-art review
TL;DR: The Robust Envelope Construction Details for Buildings of the 21st Century (ROBUST) project as mentioned in this paper was supported by the Research Council of Norway, AF Gruppen, Glava, Hunton Fiber as, Icopal, Isola, Jackon, maxit, Moelven ByggModul, Ramboll, Skanska, Statsbygg and Takprodusentenes forskningsgruppe through the SINTEF/NTNU research project.
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