Broadband solar absorbers with excellent thermal radiation efficiency based on W–Al2O3 stack of cubes

doi:10.1016/j.ijthermalsci.2022.107683

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	Broadband solar absorbers with excellent thermal radiation efficiency based on W–Al2O3 stack of cubes
	Qin, Feng 1; Xu, Feng 6; Liu, Jiangwei 1; Hu, Pengfei 1; Yi, Zao 2; Liu, Li 2; Yang, Hua 3; Zhang, Jianguo 4; Pan, Miao 5; Wu, Pinghui 5
刊名	International Journal of Thermal Sciences
	2022-09-01
卷号	179
关键词	Alumina Aluminum oxide Electromagnetic fields Heat radiation Laminating Solar absorbers Surface plasmons Broadband absorption Dielectric layer High-efficiency broadband absorption Higher efficiency Metal dielectrics Metal-dielectric lamination Radiation efficiency Solar energy absorption Surface-plasmon Thermal radiation efficiency
ISSN号	1290-0729
DOI	10.1016/j.ijthermalsci.2022.107683
英文摘要	A laminated cubic solar absorber (LCSA) with double metal-dielectric layers is proposed. It plays an extremely crucial character in the utilization of solar energy. In particular, it is necessary to realize the efficient absorption and heat conversion of solar energy. Through numerical analysis and calculation, it is concluded that the absorption efficiency of LCSA is greater than 90% from 420 nm to 2112 nm. Moreover, the weighted average absorption of Air Mass 1.5 (AM1.5) in the solar radiation range (280 nm–2500 nm) is greater than 96.32%. To explore the mechanism of this absorber, we analyzed the electromagnetic field distribution of the four peaks, and concluded that the reason for achieving the wide-band absorption is that the depth of the double-layer metal dielectric cube produces surface plasmas with different wavelengths. The incident angle insensitivity and polarization independence of LCSA are realized. The simulation results indicate that the thermal radiation efficiency is more than 90% at 2000 K. Based on the above advantages and the high temperature resistance of tungsten (W) and aluminum oxide (Al2O3), the proposed LCSA can be widely used in photothermal conversion and thermal emitters. © 2022
WOS研究方向	Thermodynamics ; Engineering
语种	英语
出版者	Elsevier Masson s.r.l.
WOS记录号	WOS:000805777200001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158483]
专题	理学院
作者单位	1.College of Energy Science and Engineering, Central South University, Changsha; 410083, China; 2.Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang; 621010, China; 3.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 4.Department of Physics, Jinzhong University, Jinzhong; 030619, China; 5.College of Physics & Information Engineering, Quanzhou Normal University, Quanzhou; 362000, China 6.College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou; 362000, China;
推荐引用方式 GB/T 7714	Qin, Feng,Xu, Feng,Liu, Jiangwei,et al. Broadband solar absorbers with excellent thermal radiation efficiency based on W–Al2O3 stack of cubes[J]. International Journal of Thermal Sciences,2022,179.
APA	Qin, Feng.,Xu, Feng.,Liu, Jiangwei.,Hu, Pengfei.,Yi, Zao.,...&Wu, Pinghui.(2022).Broadband solar absorbers with excellent thermal radiation efficiency based on W–Al2O3 stack of cubes.International Journal of Thermal Sciences,179.
MLA	Qin, Feng,et al."Broadband solar absorbers with excellent thermal radiation efficiency based on W–Al2O3 stack of cubes".International Journal of Thermal Sciences 179(2022).