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Microstructure, optical properties and thermal stability of ZrB2 and Zr-B-N thin films as high-temperature solar selective absorbers
Sun, Yaoming1,2; Xiao, Xiudi1; Chai, Guanqi1; Xu, Gang1; Xiong, Bin1; Zhang, Shaohong1
2014-06-01
发表期刊MATERIALS EXPRESS
卷号4期号:3页码:205-212
摘要ZrB2 and Zr B N thin films were deposited by DC magnetron sputtering technique. The microstructure and optical properties of thin films were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS) and spectrophotometer. Thin films with high selectivity (a = 95"26%IsRT = 5%) were achieved by optimizing the nitrogen content of absorbing layers and thickness of antireflective layer. Thermal stability test illustrated that Zr B N thin film with high nitrogen content showed weak thermal stability due to the loose morphology of thin films. Thus, thin films with low nitrogen content and suitable thickness of Si3N4 layer can exhibit superior solar selectivity (a 91.7%lem- = 4.1%) after annealing at 500 C/60 h in air. The XRD, cross-sectional TEM and EDS results of films annealed at 500 C/100 h in air demonstrated that the solar selectivity degradation of films was due to the surface oxidation of ZrB2 layer. Moreover, the solar selectivity was still kept at high level (a = 89.05%lsRT = 10.5%) after treating in neutral salt spray for 24 h. It can be deduced that ZrB2 thin film by sputtering is a superior candidate as high-temperature solar selective absorbers.
文章类型Article
关键词Solar Selective Absorbers Sputter Zrb2 Film Zr-b-n Film Thermal Stability
WOS标题词Science & Technology ; Technology
DOI10.1166/mex.2014.1164
研究领域[WOS]Science & Technology - Other Topics ; Materials Science
关键词[WOS]SPUTTER-DEPOSITION ; OHMIC CONTACTS ; MECHANICAL-PROPERTIES ; COATINGS ; COMPOSITE ; ZIRCONIUM
收录类别SCI
语种英语
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号WOS:000338910400003
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10732
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Sun, Yaoming,Xiao, Xiudi,Chai, Guanqi,et al. Microstructure, optical properties and thermal stability of ZrB2 and Zr-B-N thin films as high-temperature solar selective absorbers[J]. MATERIALS EXPRESS,2014,4(3):205-212.
APA Sun, Yaoming,Xiao, Xiudi,Chai, Guanqi,Xu, Gang,Xiong, Bin,&Zhang, Shaohong.(2014).Microstructure, optical properties and thermal stability of ZrB2 and Zr-B-N thin films as high-temperature solar selective absorbers.MATERIALS EXPRESS,4(3),205-212.
MLA Sun, Yaoming,et al."Microstructure, optical properties and thermal stability of ZrB2 and Zr-B-N thin films as high-temperature solar selective absorbers".MATERIALS EXPRESS 4.3(2014):205-212.
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