基于相变 VO2 的热致变色智能窗

IF 20.6 Q1 OPTICS
Cancheng Jiang, Lanyue He, Qingdong Xuan, Yuan Liao, Jian-Guo Dai, Dangyuan Lei
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引用次数: 0

摘要

窗户通常被认为是能效较低的部件,而热致变色涂料可在不同季节动态调节窗户的得热量,从而有望降低建筑能耗。二氧化钒(VO2)具有可逆的金属-绝缘体转变(MIT)以及相关的结构和光学特性,因此是一种适用于智能窗户的多功能热致变色材料。在本综述中,我们将深入探讨基于相变二氧化钛的智能窗户热致变色涂层的最新进展,包括从宏观晶体水平到微观结构水平(包括元素掺杂和微/纳米工程),以及可控制造方面的进展。值得注意的是,将功能元素/材料(如 W、Mo/SiO2、TiN)与 VO2 混合在微妙的结构设计(如核壳、光腔)中,为控制热致变色特性带来了新的自由度,包括 MIT 温度、透光率、太阳能调制能力以及与建筑相关的多功能性。此外,我们还概述了有可能补充或超越 VO2 固有局限性的其他致色材料。通过对新兴材料的研究,我们旨在拓宽智能窗户技术的可能性范围。我们还深入探讨了基于 VO2 的热致变色智能窗目前面临的挑战和发展前景,提出了推动这一领域朝着提高能效和可持续建筑设计方向发展的路线图。总之,本综述创新性地对 VO2 的掺杂策略和相应效应进行了分类,强调了它们对智能窗户至关重要的近红外能量调节能力,开创性地对逆核壳结构进行了理论分析,优先考虑了 VO2 薄膜中太阳光调节的实用工程策略,并总结了互补的致色材料,从而最终以全新的视角推进了基于 VO2 的智能窗户技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Phase-change VO2-based thermochromic smart windows

Phase-change VO2-based thermochromic smart windows

Thermochromic coatings hold promise in reducing building energy consumption by dynamically regulating the heat gain of windows, which are often regarded as less energy-efficient components, across different seasons. Vanadium dioxide (VO2) stands out as a versatile thermochromic material for smart windows owing to its reversible metal-to-insulator transition (MIT) alongside correlated structural and optical properties. In this review, we delve into recent advancements in the phase-change VO2-based thermochromic coatings for smart windows, spanning from the macroscopic crystal level to the microscopic structural level (including elemental doping and micro/nano-engineering), as well as advances in controllable fabrication. It is notable that hybridizing functional elements/materials (e.g., W, Mo/SiO2, TiN) with VO2 in delicate structural designs (e.g., core-shell, optical cavity) brings new degrees of freedom for controlling the thermochromic properties, including the MIT temperature, luminous transmittance, solar-energy modulation ability and building-relevant multi-functionality. Additionally, we provide an overview of alternative chromogenic materials that could potentially complement or surpass the intrinsic limitations of VO2. By examining the landscape of emerging materials, we aim to broaden the scope of possibilities for smart window technologies. We also offer insights into the current challenges and prospects of VO2-based thermochromic smart windows, presenting a roadmap for advancing this field towards enhanced energy efficiency and sustainable building design. In summary, this review innovatively categorizes doping strategies and corresponding effects of VO2, underscores their crucial NIR-energy modulation ability for smart windows, pioneers a theoretical analysis of inverse core-shell structures, prioritizes practical engineering strategies for solar modulation in VO2 films, and summarizes complementary chromogenic materials, thus ultimately advancing VO2-based smart window technologies with a fresh perspective.

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来源期刊
Light-Science & Applications
Light-Science & Applications 数理科学, 物理学I, 光学, 凝聚态物性 II :电子结构、电学、磁学和光学性质, 无机非金属材料, 无机非金属类光电信息与功能材料, 工程与材料, 信息科学, 光学和光电子学, 光学和光电子材料, 非线性光学与量子光学
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803
审稿时长
2.1 months
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