Microstructure and Optical Properties of SS/Mo/Al2O3 Spectrally Selective Solar Absorber Coating
| Autor: | Xiang-Hu Gao, Gang Liu, Qingfen Geng, Zhi-Ming Guo, Pengjun Ma |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science business.industry Scanning electron microscope Mechanical Engineering 02 engineering and technology engineering.material Sputter deposition 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Amorphous solid Optics Coating Mechanics of Materials 0103 physical sciences Absorptance engineering Optoelectronics General Materials Science Thermal emittance Thin film 0210 nano-technology business |
| Zdroj: | Journal of Materials Engineering and Performance. 26:161-167 |
| ISSN: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-016-2445-1 |
| Popis: | Surface-textured Mo thin film is fabricated by magnetron sputtering through the adjustment of deposition parameters, which exhibits a high absorptance of 0.80 and a low emittance of 0.09. The single-layer Mo deposited on stainless steel (SS) is characterized by x-ray diffraction (XRD), ultra-high resolution scanning electron microscope, atomic force microscope and optical measurement. The controlled surface roughness combined with larger aspect ratio contributes much to the high absorptance and low emittance. Based on the SS/Mo coating, a spectrally selective coating (SS/Mo/Al2O3) is designed and fabricated. The coating shows an amorphous structure and exhibits an absorptance of 0.90 and an emittance of 0.08. Tauc-Lorentz and Drude free-electron models are used to modeling the optical properties of Al2O3 and Mo layers by phase-modulated spectroscopic ellipsometry. |
| Databáze: | OpenAIRE |
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