A novel multilayer high temperature colored solar absorber coating based on high-entropy alloy MoNbHfZrTi: Optimized preparation and chromaticity investigation

被引：45
作者：
Guo, Hui-Xia [1 ]
He, Cheng-Yu [1 ]
Qiu, Xiao-Li [2 ]
Shen, Yong-Qian [3 ]
Liu, Gang [2 ]
Gao, Xiang-Hu [2 ]
机构：
[1] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Lanzhou 730070, Peoples R China
[2] Chinese Acad Sci, Res & Dev Ctr Ecochem & Ecomat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
[3] Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Minist Educ,Key Lab Nonferrous Met Alloy & Proc, Lanzhou 730050, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2020年 / 209卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloys films; Magnetron sputtering; Deposition parameters; Absorption edge; Chromaticity diagram; MECHANICAL-PROPERTIES; OPTICAL-SIMULATION; NITROGEN-CONTENT; DESIGN;
D O I：
10.1016/j.solmat.2020.110444
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
High-entropy alloys films with the composition of MoNbHfZrTiN and MoNbHfZrTiON are fabricated by a reactive RF magnetron sputtering, which have a good solar spectral selectivity and are used for solar thermal absorption coatings. By changing the flow rate of Ar/N-2/O-2, the metallic content of each layer of the coatings can be controlled, which forms the MoNbHfZrTiN layer with high metallic content and the MoNbHfZrTiON layer with low metallic content. By tailoring the deposition parameters, a novel Al/MoNbHfZrTiN/MoNbHfZrTiON/SiO2 coating has been successfully deposited on SS substrate for the purpose of shifting the absorption edge to the higher wavelength. The coating exhibits a high absorptance of 0.935 and a low emittance of 0.09. The colors and optical properties of layer-added coatings are studied, and the color coordinates are drawn in the chromaticity diagram. By controlling the thickness of MoNbHfZrTiON and SiO2 layers, the colored Al/MoNbHfZrTiN/MoNbHfZrTiON/SiO2 coatings are fabricated.
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页数：9
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