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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/124233

    Title: In situ TEM investigation of indium oxide/titanium oxide nanowire heterostructures growth through solid state reactions
    Authors: Yeh, Ping-hung
    Keywords: In2O3 nanowire;Heterostructure;Solid-state reaction;In situ TEM;Cationic exchange
    Date: 2022-03-10
    Issue Date: 2023-07-06 12:05:34 (UTC+8)
    Abstract: Heterostructured TiO2/In2O3 nanowires have been extensively applied in various photonic devices; their performance is highly related to the microstructures, which has not been, however, clearly understood; thus, it is important to investigate the microstructural evolution of the material during processing. In this work, the crystallinity and microstructure of TiO2/In2O3 nanowires were successfully controlled with the variation of annealing temperatures via solid-state reactions. The dynamic phase transformation process was demonstrated by in situ transmission electron microscope (TEM). Moreover, the elemental information at different states was identified by energy dispersive spectroscopy (EDS). It is found that different annealing temperatures would contribute to different solid-state reactions and nanowire heterostructures. Additionally, photoresponse studies show characteristics enhancement for such nanoheterostructures. This study provides the knowledge of the fundamental science in kinetics of heterostructured nanostructures, which benefits the improvement of the performance for future photonic applications.
    Relation: Materials Characterization 187, 111832
    DOI: 10.1016/j.matchar.2022.111832
    Appears in Collections:[Bachelor's Program in Advanced Material Science] Journal Article

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