Vanadium dioxide-based metasurface for temperature-adaptive radiative cooling

被引：0

作者：

Sun, Xiaojie ^{[1
]}

Zhang, Haotian ^{[1
]}

He, Rong ^{[1
,2
]}

Guo, Junpeng ^{[3
]}

Zhang, Rongjun ^{[1
,2
]}

Zheng, Yuxiang ^{[1
,2
]}

Chen, Liangyao ^{[1
]}

机构：

[1] Fudan Univ, Sch Informat Sci & Technol, Dept Opt Sci & Engn, State Key Lab Photovolta Sci & Technol, Shanghai, Peoples R China

[2] Fudan Univ, Yiwu Res Inst, High Tech Ctr New Mat Novel Devices & Cutting Edge, Yiwu, Peoples R China

[3] Univ Alabama Huntsville, Dept Elect & Comp Engn, Huntsville, AL USA

来源：

OPTICAL ENGINEERING | 2025年 / 64卷 / 02期

基金：

中国国家自然科学基金;

关键词：

vanadium dioxide; metasurface; temperature-adaptive; smart radiative cooling; BROAD-BAND; ENERGY-EFFICIENT; THERMAL EMITTER; ABSORPTION; ABSORBER;

D O I：

10.1117/1.OE.64.2.027102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

As a passive cooling method, radiative cooling is intrinsically energy-efficient and environmentally friendly because it consumes no electric energy and releases no carbon emissions. Smart radiative cooling introduces a new dimension to the current research playground, especially with the use of vanadium dioxide (VO2) to enable passively adaptive temperature-varying response. Here, we propose a temperature-adaptive radiative cooling metasurface based on a two-size VO2 microstructure for broadband absorption in the 8 to 13 mu m atmospheric window, showing a cooling power contrast of similar to 100 W/m(2) around the phase transition temperature. We show the dynamic capability of the next-generation multifunctional and intelligent designs and devices. (c) 2025 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：12