Optical simulation and experimental optimization of Al/NbMoN/NbMoON/SiO2 solar selective absorbing coatings
作者： Yongxin Wu , Cong Wang , Ying Sun , Yafei Xue , Yuping Ning
DOI: 10.1016/J.SOLMAT.2014.12.005
关键词: Materials science 、 Sputtering 、 Coating 、 Sputter deposition 、 Layer (electronics) 、 Optoelectronics 、 Thermal stability 、 Spectral line 、 Absorptance 、 Optics 、 Substrate (electronics)
摘要: For the applications in solar thermal power, preparation and optimization of an Al/NbMoN/NbMoON/SiO2 multilayer selective absorbing coating are carried out by combining experiments with optical simulation. A series NbMoN NbMoON single layers deposited magnetron reactive sputtering method different N2/O2 gas flowing rates. And then their constants obtained fitting reflection (R) transmission (T) spectra wavelength range 300–2500 nm using SCOUT software. These used to design so as get ideal spectral selectivity, i.e. high α/e ratio. According structure, we prepared all-layer coating, thickness each layer was optimized until best properties obtained. The experimental reflectance spectrum fits very well simulated result. on stainless steel substrate exhibited absorptance (α=0.948) low emittance (e=0.050) at 80 °C. It offers a good quickly reach selectivity through stability is evaluated, it exhibits vacuum 400
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