Title page for etd-0008118-121125


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URN etd-0008118-121125
Author Che-Min Chang
Author's Email Address No Public.
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Department Materials and Optoelectronic Science
Year 2017
Semester 1
Degree Ph.D.
Type of Document
Language English
Title Optical Properties and Antimicrobial Effects of Al-based Thin Film Metallic Glasses/Nanocomposites
Date of Defense 2017-12-24
Page Count 172
Keyword
  • exposure system
  • aluminum
  • antimicrobial property
  • optical film
  • thin film metallic glasses
  • nanocomposite
  • Abstract 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.
    Advisory Committee
  • Lin, Che-Hsin - chair
  • Pan, Cheng-Tang - co-chair
  • Sheng-Rui Jian - co-chair
  • Chau, Chih-Yeh - co-chair
  • J. C. Huang - advisor
  • Files
  • etd-0008118-121125.pdf
  • Indicate in-campus at 3 year and off-campus access at 3 year.
    Date of Submission 2018-01-08

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