辐射制冷无规散射结构非球形散射体的结构优化与设计准则

doi:10.11896/cldb.25060003

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Abstract Radiative cooling materials achieve passive cooling by strongly reflecting solar radiation and efficiently emitting thermal radiation in the infrared range, offering notable advantages in energy saving and environmental protection. Achieving high reflectivity in the solar spectrum critically depends on both the material selection and structural design. Currently, random scattering structures commonly utilize spherical particles to enhance reflectivity via the Mie scattering effect. However, spherical particles suffer from weak backscattering and limited enhancement in scattering efficiency at high volume fractions, which significantly constrains the performance improvement and practical implementation of random scattering structures. This work systematically investigates the optical scattering characteristics of various non-spherical particles using the discrete dipole approximation method. The results show that pyramidal and conical particles exhibit superior backward scattering performance, while cylindrical and cuboidal structures demonstrate higher scattering efficiency across the solar spectrum. Based on the volume scattering cross section and asymmetry factor, a comprehensive evaluation parameter is proposed to optimize the design of non-spherical scatterers. These findings provide an important innovative strategy for the development of efficient random scattering structures for radiative cooling.

Key words： radiative cooling random scattering structure non-spherical scatterer solar reflectivity discrete dipole approximation

Published: 10 March 2026 Online: 2026-03-10

CLC number:

TB34

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	Articles by authors
	YANG Wanglin
	PAN Jingyi
	LI Hongchao
	GONG Hao
	ZHOU Xiao
	WANG Zhongyang
	FAN Tongxiang

Cite this article:

YANG Wanglin,PAN Jingyi,LI Hongchao, et al. Optimization and Design Principles of Non-spherical Scatterers Used as Random Scattering Structures for Radiative Cooling[J]. Materials Reports, 2026, 40(5): 25060003-8.

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https://www.mater-rep.com/EN/10.11896/cldb.25060003 OR https://www.mater-rep.com/EN/Y2026/V40/I5/25060003

1 Perera A T D, Nik V M, Chen D L, et al. Nature Energy, 2020, 5, 150.
2 Santamouris M. Solar Energy, 2016, 128, 61.
3 Munday J N. Joule, 2019, 3, 2057.
4 Liu R, Wang S C, Zhou Z G, et al. Advanced Materials, 2025, 37, 2401577.
5 Lee M, Kim G, Jung Y, et al. Light: Science & Applications, 2023, 12, 134.
6 Mandal J, Yang Y, Yu N F, et al. Joule, 2020, 4, 1350.
7 Wu X K, Li J L, Jiang Q Y, et al. Nature Sustainability, 2023, 6, 1446.
8 Shu Y, Miao N H, Li R Z, et al. Journal of Materials Informatics, 2025, 5, 36.
9 Zhao D, Chen Z B, Liao X Z. Microstructures, 2022, 2, 2022007.
10 Yao K Q, Ma H C, Huang M, et al. ACS Applied Nano Materials, 2019, 2, 5512.
11 Kecebas M A, Menguc M P, Kosar A, et al. Journal of Quantitative Spectroscopy & Radiative Transfer, 2017, 198, 179.
12 Lin K X, Chao L K, Ho T C, et al. Energy and Buildings, 2021, 252, 111400.
13 Zhou L, Song H M, Liang J W, et al. Nature Sustainability, 2019, 2, 718.
14 Zhang H W, Ly K C S, Liu X H, et al. Proceedings of the National Academy of Sciences, 2020, 117, 14657.
15 Lee J, Jung Y, Lee M, et al. Nanoscale Horizons, 2022, 7, 1054.
16 Mandal J, Fu Y K, Overvig A C, et al. Science, 2018, 362, 315.
17 Wang T, Wu Y, Shi L, et al. Nature Communications, 2021, 12, 365.
18 Gong H, Song X K, Li H C, et al. Small Methods, 2025, 2401990.
19 Li H C, Song X K, Gong H, et al. Nano Letters, 2024, 24, 287.
20 Li X Y, Peoples J, Yao P Y, et al. ACS Applied Materials & Interfaces, 2021, 13, 21733.
21 Peoples J, Li X Y, Lv Y B, et al. International Journal of Heat and Mass Transfer, 2019, 131, 487.
22 Bao H, Yan C, Wang B X, et al. Solar Energy Materials and Solar Cells, 2017, 168, 78.
23 Song X K, Li H C, Gong H, et al. ACS Photonics, 2025, 12, 2775.
24 Draine B T. Astrophysical Journal, 1988, 333, 848.
25 Yurkin M A, Hoekstra A G. Journal of Quantitative Spectroscopy & Radiative Transfer, 2011, 112, 2234.
26 Bohren C F, Huffman D R. Absorption and scattering of light by small particles, John Wiley & Sons, USA, 1983, pp.119.
27 Yee K. IEEE Transactions on Antennas and Propagation, 1966, 14, 302.
28 Okafor P E, He C B, Tang G H. International Journal of Thermal Sciences, 2023, 194, 108599.
29 Li P L, Wang A, Fan J J, et al. Advanced Functional Materials, 2022, 32, 2109542.
30 Sedova A, Bermudez D, Tellez-Cruz M M, et al. Nanotechnology, 2024, 35, 025705.