Optical and structural properties of pulsed laser deposited Ti:Al2O3 thin films |
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| Authors: | Bo Chen Dongfang Yang Paul A. Charpentier Suwas Nikumb |
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| Affiliation: | aChemical and Biochemical Engineering, University of Western Ontario, 1151 Richmond Street, London, Ontario, Canada N6A 5B9;bIndustrial Materials Institute, National Research Council Canada, 800 Collip Circle, London, Ontario, Canada N6G 4X8 |
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| Abstract: | Spectrally selective solar absorber coatings using metal–dielectric composites offer a high degree of flexibility since their solar selectivity can be optimized by the proper choices of constituents, coating thickness, metal particle concentration, size, shape, and orientation. In this article, Ti:Al2O3 composite films of various Ti contents were prepared by the pulsed laser deposition technique, and their structural and optical properties were investigated by scanning electron microscope, X-ray photoelectron spectroscope, and X-ray diffraction methods. The results demonstrate promising solar spectrally selective behavior indicating Ti:Al2O3 composite as an excellent choice for solar thermal applications. |
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| Keywords: | Composite Spectrally selective coatings Thermal |
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