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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/79499

    Title: 有缺陷的石墨烯的水接觸角滯後現象;Contact angle hysteresis on defective graphene
    Authors: 詹家郡;Chan, Chia-Chun
    Contributors: 物理學系
    Keywords: 石墨烯;接觸角;拉曼光譜;接觸角滯後;graphene;contact angle;Raman;contact angle hysteresis
    Date: 2019-01-29
    Issue Date: 2019-04-02 14:33:12 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 石墨烯是一種由單層的碳原子組成的,真正的二維材料。碳原子排列成
    且它只吸收 2.7%的光,所以對肉眼來說幾乎是透明的不可見的,這些特性
    並比較,希望能對石墨烯的表面研究有一些貢獻。;Graphene, a real 2-dimension material composed of one layer of carbon atom
    with honeycomb-like lattice, impressed scientist by its special properties. For
    example, graphene has extremely high carrier mobility and mechanical strength
    due to the sp2 structure. Furthermore, graphene only absorbs 2.7% of light and is
    almost transparent to eye and hence graphene is appropriate to be a protective
    coating layer. To be a protective coating layer, more surface properties of graphene
    need to be fully understood. However, scientists have not reached an agreement at
    some properties, for example, the wetting property, or water contact angle. In the
    past decade, expert groups all around the world have extensively reported both
    experimental and theoretical results, which are somehow inconsistent. In these
    wettability measurements, CVD graphene was most used because pristine
    graphene was too crumbled and rGO had too much oxygen and organic group
    remained. However, unavoidable defects, i.e. grain boundaries, wrinkles and holes,
    were also created in CVD and transfer process as well. These defects affected
    results of contact angle measurement but did not receive much concern because
    defect was inevitable in graphene. Fortunately, contact angle hysteresis provides a
    remarkable solution.
    Appears in Collections:[物理研究所] 博碩士論文

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