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Title: Thz spectroscopy study of metal-insulator phase transition on vanadium dioxide
Keywords: THz spectroscpy, metal-insulator transition, vanadium dioxide, size effect, effect of oxygen stoichiometry
Issue Date: 7-Aug-2013
Citation: LIU HONGWEI (2013-08-07). Thz spectroscopy study of metal-insulator phase transition on vanadium dioxide. ScholarBank@NUS Repository.
Abstract: Vanadium dioxide (VO2) is found to exhibit a first-order, reversible metal-insulator transition (MIT) at 340 K. Although many effort are made on investigating the MIT, the systematical studies of the photoinduced MIT on VO2 are still absent. The oxygen stoichiometry and dimensionalities of VO2 may affect MIT behaviors significantly. The aim of this thesis was to investigate the MIT on VO2 systematically, including the primary mechanism and the factors which can influence on the properties of MIT. hese results can improve the understanding of the mechanism of the photoinduced MIT. These findings provide valuable information regarding the transition process. The detailed dynamic process exhibited by monitoring parameter c provides deeper insight on understanding the mechanism of MIT. The results about depressed phase transition temperature show an intriguing possibility of designing different room-temperature phase transition device.
Appears in Collections:Ph.D Theses (Open)

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