Optical Properties and Antimicrobial Effects of Al-based Thin Film Metallic Glasses/Nanocomposites
| Autor: | Che-Min Chang, 張哲銘 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 This study is mainly focused on the optical properties of Al-based thin film metallic glasses (TFMGs) and thin film metallic glasses nanocomposite (TFMGCs). The mechanical properties and the antimicrobial activities were also examined. Finally, these films are applied as the high optical reflective films with outstanding antimicrobial and antifungal responses in the newly developed UV-LED exposure system. The elements of Al-based TFMGs and TFMGCs used in this study include aluminum (Al), nickel (Ni), and yttrium (Y). The magnetron co-sputtering is adopted to fabricate the films on silicon or glass substrate. In this research, various Al-Ni-Y films are firstly synthesized with different compositions and under different process conditions, in order to reach the optimum process and high optical reflectivity performance. Next, the antimicrobial and antifungal responses of such films are explored and rated. In order to determine the antimicrobial activities, the P. aeruginosa, E. coli and S. aureus were selected. Finally, the films with both high reflectivity and antimicrobial/antifungal properties are applied in the novel ultraviolet UV-LED exposure system. In comparison with commercial pure Al and Ag thin film coatings for high optical reflection applications, the current Al-based TFMGs and TFMGCs are demonstrated to possess a better combination of mechanical and optical properties. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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