一种创新的VO2超表面设计，用于自适应辐射冷却智能窗

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces Pub Date : 2025-06-04 DOI:10.1016/j.surfin.2025.106868

Zhaoyang Wang , Jiran Liang , Cancheng Jiang , Dangyuan Lei , Usama Afzal , Chengye Zhang , Yunfei Bai , Dequan Zhang

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引用次数: 0

摘要

建筑节能需要气候响应型热解决方案。传统的辐射冷却器无法平衡效率和气候响应，在温带地区，固定反射率和不可逆相变因过冷而浪费48%的能源，与碳中和相冲突。我们设计了一个气候响应辐射超表面通过垂直排列的二氧化钒（VO2）纳米片与腔调制双波段开关。值得注意的是，该器件在热光谱内的热发射率调制为0.85，发光透过率为68.8%，太阳吸收(a)调制为- 3.3% （Ametal= 27.7%）。我们的研究结果表明，热发射率和太阳吸收都可以通过在VO2纳米片之间使用等效电容-电感（LC）谐振器开关来动态调节。这项工作展示了一种能够调制太阳和辐射冷却特性的多波段发射器，为自适应辐射冷却器的发展铺平了道路。

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An innovative VO2 metasurface designs for adaptive radiation cooling smart windows

Buildings energy conservation demand climate-responsive thermal solutions. Conventional radiative coolers cannot balance efficiency and climate response, with fixed reflectivity and irreversible phase changes wasting 48 % energy via overcooling in temperate zones, conflicting with carbon neutrality. We engineered a climate-responsive radiative metasurface through vertically aligned vanadium dioxide (VO₂) nanosheets with cavity-modulated dual-band switching. Notably, the device demonstrates a thermal emissivity modulation of 0.85 within the thermal spectrum, a luminous transmittance of 68.8 % and a solar absorption(A) modulation of -3.3 % (A_metal=27.7 %) in the solar spectrum. Our findings indicate that both thermal emissivity and solar absorption can be dynamically tuned using an equivalent capacitance-inductance (LC) resonator switch between the VO₂ nanosheets. This work showcases a multiband emitter capable of modulating both solar and radiative cooling properties, paving the way for the advancement of adaptive radiation coolers.

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来源期刊

Surfaces and Interfaces Chemistry-General Chemistry

CiteScore

8.50

自引率

6.50%

发文量

753

审稿时长

35 days

期刊介绍： The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results. Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)