Thermochromic Characteristics of Vanadium Dioxide by Metal Oxide Co-sputtering

Alternative Title
Thermochromic Characteristics of Vanadium Dioxide by Metal Oxide Co-sputtering
Author(s)
Choi, Jun Oh
Alternative Author(s)
Jun Oh Choi
Advisor
고경현
Department
일반대학원 에너지시스템학과
Publisher
The Graduate School, Ajou University
Publication Year
2016-02
Language
eng
Keyword
ThermochromicVanadium DioxideCo-sputtering
Alternative Abstract
The main characteristics of smart window was a selective blocking of infrared light. Vanadium dioxide has a phase transformation characterisitics between insulated state with transparent property and metallic state with reflective property to infrared light at specific temperature. So, vanadium dioxide was the best choice for a smart window. The vanadium oxide thin film was deposited by RF sputtering system. The V2O5 target and several oxide target (TiO, Cr2O3, WO3, Fe2O3, NiO, CuO, Al2O3) was selected. The crystal structure of vanadium oxide was determined by the deposition parameter or additional cation effect. Valence of vanadium ion was proportional to working pressure. The role of additional cation was the formation of compound (Ti, Cu), doping (Cr, Fe, Al), and amorphization (W, Ni). The effect of cation addition was reduction (Ti, Cr, Fe, Al) and oxidation (Cu) of vanadium ion. The effect of metal oxide co-sputtering was 'compound formation', 'amorphization', 'control of oxygen state in chamber', and 'improvement of deposition rate'.
URI
https://dspace.ajou.ac.kr/handle/2018.oak/12628
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Graduate School of Ajou University > Department of Energy Systems > 4. Theses(Ph.D)
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